Home / 712,919.34-1,069,379.01-239,604.70

Finding the Fourth Proportional to 712,919.34, 1,069,379.01 and 239,604.70

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Solution

The fourth proportional to 712,919.34, 1,069,379.01 and 239,604.70 is: 359,407.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,919.34 : 1,069,379.01 = 239,604.70 : x
  2. Step 2: Convert to fraction form
    712,919.34/1,069,379.01 = 239,604.70/x
  3. Step 3: Cross multiply
    712,919.34x = 1,069,379.01 × 239,604.70
  4. Step 4: Simplify right side
    712,919.34x = 256,228,236,877.35
  5. Step 5: Solve for x
    x = 256,228,236,877.35/712,919.34
  6. Step 6: Final answer
    x = 359,407.05

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.