Home / 658,509.87-908,724.96-386,573.43

Finding the Fourth Proportional to 658,509.87, 908,724.96 and 386,573.43

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Solution

The fourth proportional to 658,509.87, 908,724.96 and 386,573.43 is: 533,460.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,509.87 : 908,724.96 = 386,573.43 : x
  2. Step 2: Convert to fraction form
    658,509.87/908,724.96 = 386,573.43/x
  3. Step 3: Cross multiply
    658,509.87x = 908,724.96 × 386,573.43
  4. Step 4: Simplify right side
    658,509.87x = 351,288,924,713.81
  5. Step 5: Solve for x
    x = 351,288,924,713.81/658,509.87
  6. Step 6: Final answer
    x = 533,460.38

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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.