Home / 1,323,318.72-1,825,244.64-915,545.28

Finding the Fourth Proportional to 1,323,318.72, 1,825,244.64 and 915,545.28

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Solution

The fourth proportional to 1,323,318.72, 1,825,244.64 and 915,545.28 is: 1,262,805.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323,318.72 : 1,825,244.64 = 915,545.28 : x
  2. Step 2: Convert to fraction form
    1,323,318.72/1,825,244.64 = 915,545.28/x
  3. Step 3: Cross multiply
    1,323,318.72x = 1,825,244.64 × 915,545.28
  4. Step 4: Simplify right side
    1,323,318.72x = 1,671,094,114,997.30
  5. Step 5: Solve for x
    x = 1,671,094,114,997.30/1,323,318.72
  6. Step 6: Final answer
    x = 1,262,805.47

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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.