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Finding the Fourth Proportional to 671,377.28, 926,473.12 and 384,697.92

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Solution

The fourth proportional to 671,377.28, 926,473.12 and 384,697.92 is: 530,867.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,377.28 : 926,473.12 = 384,697.92 : x
  2. Step 2: Convert to fraction form
    671,377.28/926,473.12 = 384,697.92/x
  3. Step 3: Cross multiply
    671,377.28x = 926,473.12 × 384,697.92
  4. Step 4: Simplify right side
    671,377.28x = 356,412,282,199.91
  5. Step 5: Solve for x
    x = 356,412,282,199.91/671,377.28
  6. Step 6: Final answer
    x = 530,867.36

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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.