Home / 906,313.52-1,250,687.72-498,415.38

Finding the Fourth Proportional to 906,313.52, 1,250,687.72 and 498,415.38

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Solution

The fourth proportional to 906,313.52, 1,250,687.72 and 498,415.38 is: 687,799.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,313.52 : 1,250,687.72 = 498,415.38 : x
  2. Step 2: Convert to fraction form
    906,313.52/1,250,687.72 = 498,415.38/x
  3. Step 3: Cross multiply
    906,313.52x = 1,250,687.72 × 498,415.38
  4. Step 4: Simplify right side
    906,313.52x = 623,361,991,781.09
  5. Step 5: Solve for x
    x = 623,361,991,781.09/906,313.52
  6. Step 6: Final answer
    x = 687,799.50

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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.