Home / 906,000.77-1,250,281.87-498,109.55

Finding the Fourth Proportional to 906,000.77, 1,250,281.87 and 498,109.55

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Solution

The fourth proportional to 906,000.77, 1,250,281.87 and 498,109.55 is: 687,391.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,000.77 : 1,250,281.87 = 498,109.55 : x
  2. Step 2: Convert to fraction form
    906,000.77/1,250,281.87 = 498,109.55/x
  3. Step 3: Cross multiply
    906,000.77x = 1,250,281.87 × 498,109.55
  4. Step 4: Simplify right side
    906,000.77x = 622,777,339,638.86
  5. Step 5: Solve for x
    x = 622,777,339,638.86/906,000.77
  6. Step 6: Final answer
    x = 687,391.62

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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.