Home / 1,109,306.79-1,530,812.31-625,916.92

Finding the Fourth Proportional to 1,109,306.79, 1,530,812.31 and 625,916.92

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Solution

The fourth proportional to 1,109,306.79, 1,530,812.31 and 625,916.92 is: 863,747.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,306.79 : 1,530,812.31 = 625,916.92 : x
  2. Step 2: Convert to fraction form
    1,109,306.79/1,530,812.31 = 625,916.92/x
  3. Step 3: Cross multiply
    1,109,306.79x = 1,530,812.31 × 625,916.92
  4. Step 4: Simplify right side
    1,109,306.79x = 958,161,326,173.29
  5. Step 5: Solve for x
    x = 958,161,326,173.29/1,109,306.79
  6. Step 6: Final answer
    x = 863,747.82

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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.