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Finding the Fourth Proportional to 634,132.81, 875,103.06 and 347,646.74

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Solution

The fourth proportional to 634,132.81, 875,103.06 and 347,646.74 is: 479,752.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,132.81 : 875,103.06 = 347,646.74 : x
  2. Step 2: Convert to fraction form
    634,132.81/875,103.06 = 347,646.74/x
  3. Step 3: Cross multiply
    634,132.81x = 875,103.06 × 347,646.74
  4. Step 4: Simplify right side
    634,132.81x = 304,226,729,464.46
  5. Step 5: Solve for x
    x = 304,226,729,464.46/634,132.81
  6. Step 6: Final answer
    x = 479,752.39

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Double scale
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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.