Home / 1,689,433.29-2,331,399.37-915,044.86

Finding the Fourth Proportional to 1,689,433.29, 2,331,399.37 and 915,044.86

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Solution

The fourth proportional to 1,689,433.29, 2,331,399.37 and 915,044.86 is: 1,262,751.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,689,433.29 : 2,331,399.37 = 915,044.86 : x
  2. Step 2: Convert to fraction form
    1,689,433.29/2,331,399.37 = 915,044.86/x
  3. Step 3: Cross multiply
    1,689,433.29x = 2,331,399.37 × 915,044.86
  4. Step 4: Simplify right side
    1,689,433.29x = 2,133,335,010,125.74
  5. Step 5: Solve for x
    x = 2,133,335,010,125.74/1,689,433.29
  6. Step 6: Final answer
    x = 1,262,751.85

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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.