Home / 741,679.68-1,023,508.08-402,140.64

Finding the Fourth Proportional to 741,679.68, 1,023,508.08 and 402,140.64

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Solution

The fourth proportional to 741,679.68, 1,023,508.08 and 402,140.64 is: 554,948.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    741,679.68 : 1,023,508.08 = 402,140.64 : x
  2. Step 2: Convert to fraction form
    741,679.68/1,023,508.08 = 402,140.64/x
  3. Step 3: Cross multiply
    741,679.68x = 1,023,508.08 × 402,140.64
  4. Step 4: Simplify right side
    741,679.68x = 411,594,194,336.37
  5. Step 5: Solve for x
    x = 411,594,194,336.37/741,679.68
  6. Step 6: Final answer
    x = 554,948.73

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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.