Home / 738,423.54-1,109,947.41-487,317.69

Finding the Fourth Proportional to 738,423.54, 1,109,947.41 and 487,317.69

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Solution

The fourth proportional to 738,423.54, 1,109,947.41 and 487,317.69 is: 732,502.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,423.54 : 1,109,947.41 = 487,317.69 : x
  2. Step 2: Convert to fraction form
    738,423.54/1,109,947.41 = 487,317.69/x
  3. Step 3: Cross multiply
    738,423.54x = 1,109,947.41 × 487,317.69
  4. Step 4: Simplify right side
    738,423.54x = 540,897,007,862.68
  5. Step 5: Solve for x
    x = 540,897,007,862.68/738,423.54
  6. Step 6: Final answer
    x = 732,502.39

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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.