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Finding the Fourth Proportional to 636,294.92, 877,995.54 and 374,494.54

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Solution

The fourth proportional to 636,294.92, 877,995.54 and 374,494.54 is: 516,748.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,294.92 : 877,995.54 = 374,494.54 : x
  2. Step 2: Convert to fraction form
    636,294.92/877,995.54 = 374,494.54/x
  3. Step 3: Cross multiply
    636,294.92x = 877,995.54 × 374,494.54
  4. Step 4: Simplify right side
    636,294.92x = 328,804,535,874.35
  5. Step 5: Solve for x
    x = 328,804,535,874.35/636,294.92
  6. Step 6: Final answer
    x = 516,748.64

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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.