Home / 906,005.64-1,250,288.56-498,114.40

Finding the Fourth Proportional to 906,005.64, 1,250,288.56 and 498,114.40

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Solution

The fourth proportional to 906,005.64, 1,250,288.56 and 498,114.40 is: 687,398.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,005.64 : 1,250,288.56 = 498,114.40 : x
  2. Step 2: Convert to fraction form
    906,005.64/1,250,288.56 = 498,114.40/x
  3. Step 3: Cross multiply
    906,005.64x = 1,250,288.56 × 498,114.40
  4. Step 4: Simplify right side
    906,005.64x = 622,786,735,891.26
  5. Step 5: Solve for x
    x = 622,786,735,891.26/906,005.64
  6. Step 6: Final answer
    x = 687,398.30

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1.5x scale

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.