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Finding the Fourth Proportional to 636,732.22, 878,681.10 and 350,235.22

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Solution

The fourth proportional to 636,732.22, 878,681.10 and 350,235.22 is: 483,319.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,732.22 : 878,681.10 = 350,235.22 : x
  2. Step 2: Convert to fraction form
    636,732.22/878,681.10 = 350,235.22/x
  3. Step 3: Cross multiply
    636,732.22x = 878,681.10 × 350,235.22
  4. Step 4: Simplify right side
    636,732.22x = 307,745,068,368.34
  5. Step 5: Solve for x
    x = 307,745,068,368.34/636,732.22
  6. Step 6: Final answer
    x = 483,319.45

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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.