Home / 712,872.70-1,069,309.05-460,930.30

Finding the Fourth Proportional to 712,872.70, 1,069,309.05 and 460,930.30

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Solution

The fourth proportional to 712,872.70, 1,069,309.05 and 460,930.30 is: 691,395.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,872.70 : 1,069,309.05 = 460,930.30 : x
  2. Step 2: Convert to fraction form
    712,872.70/1,069,309.05 = 460,930.30/x
  3. Step 3: Cross multiply
    712,872.70x = 1,069,309.05 × 460,930.30
  4. Step 4: Simplify right side
    712,872.70x = 492,876,941,209.22
  5. Step 5: Solve for x
    x = 492,876,941,209.22/712,872.70
  6. Step 6: Final answer
    x = 691,395.45

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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.