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Finding the Fourth Proportional to 625,337.40, 937,314.90 and 345,055.80

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Solution

The fourth proportional to 625,337.40, 937,314.90 and 345,055.80 is: 517,202.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,337.40 : 937,314.90 = 345,055.80 : x
  2. Step 2: Convert to fraction form
    625,337.40/937,314.90 = 345,055.80/x
  3. Step 3: Cross multiply
    625,337.40x = 937,314.90 × 345,055.80
  4. Step 4: Simplify right side
    625,337.40x = 323,425,942,671.42
  5. Step 5: Solve for x
    x = 323,425,942,671.42/625,337.40
  6. Step 6: Final answer
    x = 517,202.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.