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Finding the Fourth Proportional to 452,837.70, 679,256.55 and 407,736.90

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Solution

The fourth proportional to 452,837.70, 679,256.55 and 407,736.90 is: 611,605.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,837.70 : 679,256.55 = 407,736.90 : x
  2. Step 2: Convert to fraction form
    452,837.70/679,256.55 = 407,736.90/x
  3. Step 3: Cross multiply
    452,837.70x = 679,256.55 × 407,736.90
  4. Step 4: Simplify right side
    452,837.70x = 276,957,960,001.70
  5. Step 5: Solve for x
    x = 276,957,960,001.70/452,837.70
  6. Step 6: Final answer
    x = 611,605.35

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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.