Home / 915,715.82-1,264,280.74-589,174.86

Finding the Fourth Proportional to 915,715.82, 1,264,280.74 and 589,174.86

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Solution

The fourth proportional to 915,715.82, 1,264,280.74 and 589,174.86 is: 813,442.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,715.82 : 1,264,280.74 = 589,174.86 : x
  2. Step 2: Convert to fraction form
    915,715.82/1,264,280.74 = 589,174.86/x
  3. Step 3: Cross multiply
    915,715.82x = 1,264,280.74 × 589,174.86
  4. Step 4: Simplify right side
    915,715.82x = 744,882,427,990.20
  5. Step 5: Solve for x
    x = 744,882,427,990.20/915,715.82
  6. Step 6: Final answer
    x = 813,442.79

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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.