Home / 688,567.20-1,032,850.80-239,138.70

Finding the Fourth Proportional to 688,567.20, 1,032,850.80 and 239,138.70

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Solution

The fourth proportional to 688,567.20, 1,032,850.80 and 239,138.70 is: 358,708.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,567.20 : 1,032,850.80 = 239,138.70 : x
  2. Step 2: Convert to fraction form
    688,567.20/1,032,850.80 = 239,138.70/x
  3. Step 3: Cross multiply
    688,567.20x = 1,032,850.80 × 239,138.70
  4. Step 4: Simplify right side
    688,567.20x = 246,994,597,605.96
  5. Step 5: Solve for x
    x = 246,994,597,605.96/688,567.20
  6. Step 6: Final answer
    x = 358,708.05

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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.