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Finding the Fourth Proportional to 634,298.32, 875,790.88 and 408,337.44

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Solution

The fourth proportional to 634,298.32, 875,790.88 and 408,337.44 is: 563,801.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,298.32 : 875,790.88 = 408,337.44 : x
  2. Step 2: Convert to fraction form
    634,298.32/875,790.88 = 408,337.44/x
  3. Step 3: Cross multiply
    634,298.32x = 875,790.88 × 408,337.44
  4. Step 4: Simplify right side
    634,298.32x = 357,618,205,914.55
  5. Step 5: Solve for x
    x = 357,618,205,914.55/634,298.32
  6. Step 6: Final answer
    x = 563,801.28

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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.