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Finding the Fourth Proportional to 461,678.80, 636,715.16 and 325,472.40

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Solution

The fourth proportional to 461,678.80, 636,715.16 and 325,472.40 is: 448,868.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,678.80 : 636,715.16 = 325,472.40 : x
  2. Step 2: Convert to fraction form
    461,678.80/636,715.16 = 325,472.40/x
  3. Step 3: Cross multiply
    461,678.80x = 636,715.16 × 325,472.40
  4. Step 4: Simplify right side
    461,678.80x = 207,233,211,241.58
  5. Step 5: Solve for x
    x = 207,233,211,241.58/461,678.80
  6. Step 6: Final answer
    x = 448,868.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.