Home / 690,025.52-951,967.94-509,171.55

Finding the Fourth Proportional to 690,025.52, 951,967.94 and 509,171.55

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Solution

The fourth proportional to 690,025.52, 951,967.94 and 509,171.55 is: 702,459.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,025.52 : 951,967.94 = 509,171.55 : x
  2. Step 2: Convert to fraction form
    690,025.52/951,967.94 = 509,171.55/x
  3. Step 3: Cross multiply
    690,025.52x = 951,967.94 × 509,171.55
  4. Step 4: Simplify right side
    690,025.52x = 484,714,989,014.25
  5. Step 5: Solve for x
    x = 484,714,989,014.25/690,025.52
  6. Step 6: Final answer
    x = 702,459.52

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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.