Home / 906,490.79-1,250,959.79-498,634.43

Finding the Fourth Proportional to 906,490.79, 1,250,959.79 and 498,634.43

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Solution

The fourth proportional to 906,490.79, 1,250,959.79 and 498,634.43 is: 688,116.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,490.79 : 1,250,959.79 = 498,634.43 : x
  2. Step 2: Convert to fraction form
    906,490.79/1,250,959.79 = 498,634.43/x
  3. Step 3: Cross multiply
    906,490.79x = 1,250,959.79 × 498,634.43
  4. Step 4: Simplify right side
    906,490.79x = 623,771,618,712.17
  5. Step 5: Solve for x
    x = 623,771,618,712.17/906,490.79
  6. Step 6: Final answer
    x = 688,116.88

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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.