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Finding the Fourth Proportional to 636,283.68, 878,073.48 and 364,355.88

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Solution

The fourth proportional to 636,283.68, 878,073.48 and 364,355.88 is: 502,812.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,283.68 : 878,073.48 = 364,355.88 : x
  2. Step 2: Convert to fraction form
    636,283.68/878,073.48 = 364,355.88/x
  3. Step 3: Cross multiply
    636,283.68x = 878,073.48 × 364,355.88
  4. Step 4: Simplify right side
    636,283.68x = 319,931,235,510.06
  5. Step 5: Solve for x
    x = 319,931,235,510.06/636,283.68
  6. Step 6: Final answer
    x = 502,812.26

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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.