Home / 915,382.10-1,373,581.86-409,922.66

Finding the Fourth Proportional to 915,382.10, 1,373,581.86 and 409,922.66

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Solution

The fourth proportional to 915,382.10, 1,373,581.86 and 409,922.66 is: 615,111.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,382.10 : 1,373,581.86 = 409,922.66 : x
  2. Step 2: Convert to fraction form
    915,382.10/1,373,581.86 = 409,922.66/x
  3. Step 3: Cross multiply
    915,382.10x = 1,373,581.86 × 409,922.66
  4. Step 4: Simplify right side
    915,382.10x = 563,062,329,778.95
  5. Step 5: Solve for x
    x = 563,062,329,778.95/915,382.10
  6. Step 6: Final answer
    x = 615,111.80

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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.