Home / 906,179.60-1,250,559.92-498,312.40

Finding the Fourth Proportional to 906,179.60, 1,250,559.92 and 498,312.40

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Solution

The fourth proportional to 906,179.60, 1,250,559.92 and 498,312.40 is: 687,688.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,179.60 : 1,250,559.92 = 498,312.40 : x
  2. Step 2: Convert to fraction form
    906,179.60/1,250,559.92 = 498,312.40/x
  3. Step 3: Cross multiply
    906,179.60x = 1,250,559.92 × 498,312.40
  4. Step 4: Simplify right side
    906,179.60x = 623,169,515,079.01
  5. Step 5: Solve for x
    x = 623,169,515,079.01/906,179.60
  6. Step 6: Final answer
    x = 687,688.75

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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.