Home / 741,774.20-1,023,648.38-402,242.72

Finding the Fourth Proportional to 741,774.20, 1,023,648.38 and 402,242.72

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Solution

The fourth proportional to 741,774.20, 1,023,648.38 and 402,242.72 is: 555,094.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    741,774.20 : 1,023,648.38 = 402,242.72 : x
  2. Step 2: Convert to fraction form
    741,774.20/1,023,648.38 = 402,242.72/x
  3. Step 3: Cross multiply
    741,774.20x = 1,023,648.38 × 402,242.72
  4. Step 4: Simplify right side
    741,774.20x = 411,755,101,565.34
  5. Step 5: Solve for x
    x = 411,755,101,565.34/741,774.20
  6. Step 6: Final answer
    x = 555,094.94

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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.