Home / 1,243,458.90-1,865,188.17-344,900.63

Finding the Fourth Proportional to 1,243,458.90, 1,865,188.17 and 344,900.63

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Solution

The fourth proportional to 1,243,458.90, 1,865,188.17 and 344,900.63 is: 517,350.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,458.90 : 1,865,188.17 = 344,900.63 : x
  2. Step 2: Convert to fraction form
    1,243,458.90/1,865,188.17 = 344,900.63/x
  3. Step 3: Cross multiply
    1,243,458.90x = 1,865,188.17 × 344,900.63
  4. Step 4: Simplify right side
    1,243,458.90x = 643,304,565,575.61
  5. Step 5: Solve for x
    x = 643,304,565,575.61/1,243,458.90
  6. Step 6: Final answer
    x = 517,350.89

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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.