Home / 749,343.17-1,034,091.31-405,176.70

Finding the Fourth Proportional to 749,343.17, 1,034,091.31 and 405,176.70

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Solution

The fourth proportional to 749,343.17, 1,034,091.31 and 405,176.70 is: 559,142.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,343.17 : 1,034,091.31 = 405,176.70 : x
  2. Step 2: Convert to fraction form
    749,343.17/1,034,091.31 = 405,176.70/x
  3. Step 3: Cross multiply
    749,343.17x = 1,034,091.31 × 405,176.70
  4. Step 4: Simplify right side
    749,343.17x = 418,989,704,484.48
  5. Step 5: Solve for x
    x = 418,989,704,484.48/749,343.17
  6. Step 6: Final answer
    x = 559,142.62

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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.