Home / 915,025.28-1,371,189.03-509,659.16

Finding the Fourth Proportional to 915,025.28, 1,371,189.03 and 509,659.16

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Solution

The fourth proportional to 915,025.28, 1,371,189.03 and 509,659.16 is: 763,737.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,025.28 : 1,371,189.03 = 509,659.16 : x
  2. Step 2: Convert to fraction form
    915,025.28/1,371,189.03 = 509,659.16/x
  3. Step 3: Cross multiply
    915,025.28x = 1,371,189.03 × 509,659.16
  4. Step 4: Simplify right side
    915,025.28x = 698,839,049,231.02
  5. Step 5: Solve for x
    x = 698,839,049,231.02/915,025.28
  6. Step 6: Final answer
    x = 763,737.42

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1.5x scale

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.