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Finding the Fourth Proportional to 520,460.11, 717,957.89 and 316,573.39

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Solution

The fourth proportional to 520,460.11, 717,957.89 and 316,573.39 is: 436,702.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,460.11 : 717,957.89 = 316,573.39 : x
  2. Step 2: Convert to fraction form
    520,460.11/717,957.89 = 316,573.39/x
  3. Step 3: Cross multiply
    520,460.11x = 717,957.89 × 316,573.39
  4. Step 4: Simplify right side
    520,460.11x = 227,286,359,524.76
  5. Step 5: Solve for x
    x = 227,286,359,524.76/520,460.11
  6. Step 6: Final answer
    x = 436,702.75

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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.