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Finding the Fourth Proportional to 607,306.20, 910,959.30 and 512,827.80

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Solution

The fourth proportional to 607,306.20, 910,959.30 and 512,827.80 is: 769,241.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,306.20 : 910,959.30 = 512,827.80 : x
  2. Step 2: Convert to fraction form
    607,306.20/910,959.30 = 512,827.80/x
  3. Step 3: Cross multiply
    607,306.20x = 910,959.30 × 512,827.80
  4. Step 4: Simplify right side
    607,306.20x = 467,165,253,708.54
  5. Step 5: Solve for x
    x = 467,165,253,708.54/607,306.20
  6. Step 6: Final answer
    x = 769,241.70

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Double scale
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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.