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Finding the Fourth Proportional to 714,120.34, 985,760.34 and 484,780.13

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Solution

The fourth proportional to 714,120.34, 985,760.34 and 484,780.13 is: 669,182.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,120.34 : 985,760.34 = 484,780.13 : x
  2. Step 2: Convert to fraction form
    714,120.34/985,760.34 = 484,780.13/x
  3. Step 3: Cross multiply
    714,120.34x = 985,760.34 × 484,780.13
  4. Step 4: Simplify right side
    714,120.34x = 477,877,025,774.04
  5. Step 5: Solve for x
    x = 477,877,025,774.04/714,120.34
  6. Step 6: Final answer
    x = 669,182.77

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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.