Home / 668,280.49-1,002,265.60-398,483.97

Finding the Fourth Proportional to 668,280.49, 1,002,265.60 and 398,483.97

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Solution

The fourth proportional to 668,280.49, 1,002,265.60 and 398,483.97 is: 597,633.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,280.49 : 1,002,265.60 = 398,483.97 : x
  2. Step 2: Convert to fraction form
    668,280.49/1,002,265.60 = 398,483.97/x
  3. Step 3: Cross multiply
    668,280.49x = 1,002,265.60 × 398,483.97
  4. Step 4: Simplify right side
    668,280.49x = 399,386,776,912.63
  5. Step 5: Solve for x
    x = 399,386,776,912.63/668,280.49
  6. Step 6: Final answer
    x = 597,633.45

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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.