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Finding the Fourth Proportional to 560,411.32, 772,464.16 and 379,057.07

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Solution

The fourth proportional to 560,411.32, 772,464.16 and 379,057.07 is: 522,487.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,411.32 : 772,464.16 = 379,057.07 : x
  2. Step 2: Convert to fraction form
    560,411.32/772,464.16 = 379,057.07/x
  3. Step 3: Cross multiply
    560,411.32x = 772,464.16 × 379,057.07
  4. Step 4: Simplify right side
    560,411.32x = 292,808,001,169.61
  5. Step 5: Solve for x
    x = 292,808,001,169.61/560,411.32
  6. Step 6: Final answer
    x = 522,487.66

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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.