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Finding the Fourth Proportional to 856,880, 1,182,001.92 and 534,435.20

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Solution

The fourth proportional to 856,880, 1,182,001.92 and 534,435.20 is: 737,213.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,880 : 1,182,001.92 = 534,435.20 : x
  2. Step 2: Convert to fraction form
    856,880/1,182,001.92 = 534,435.20/x
  3. Step 3: Cross multiply
    856,880x = 1,182,001.92 × 534,435.20
  4. Step 4: Simplify right side
    856,880x = 631,703,432,515.58
  5. Step 5: Solve for x
    x = 631,703,432,515.58/856,880
  6. Step 6: Final answer
    x = 737,213.42

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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.