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Finding the Fourth Proportional to 476,655.70, 717,560.46 and 434,233.76

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Solution

The fourth proportional to 476,655.70, 717,560.46 and 434,233.76 is: 653,698.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,655.70 : 717,560.46 = 434,233.76 : x
  2. Step 2: Convert to fraction form
    476,655.70/717,560.46 = 434,233.76/x
  3. Step 3: Cross multiply
    476,655.70x = 717,560.46 × 434,233.76
  4. Step 4: Simplify right side
    476,655.70x = 311,588,976,573.13
  5. Step 5: Solve for x
    x = 311,588,976,573.13/476,655.70
  6. Step 6: Final answer
    x = 653,698.21

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.