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Finding the Fourth Proportional to 625,368.90, 937,362.15 and 345,087.30

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Solution

The fourth proportional to 625,368.90, 937,362.15 and 345,087.30 is: 517,249.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,368.90 : 937,362.15 = 345,087.30 : x
  2. Step 2: Convert to fraction form
    625,368.90/937,362.15 = 345,087.30/x
  3. Step 3: Cross multiply
    625,368.90x = 937,362.15 × 345,087.30
  4. Step 4: Simplify right side
    625,368.90x = 323,471,773,465.70
  5. Step 5: Solve for x
    x = 323,471,773,465.70/625,368.90
  6. Step 6: Final answer
    x = 517,249.54

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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.