Home / 891,071.40-1,229,565.24-509,122.92

Finding the Fourth Proportional to 891,071.40, 1,229,565.24 and 509,122.92

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Solution

The fourth proportional to 891,071.40, 1,229,565.24 and 509,122.92 is: 702,524.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,071.40 : 1,229,565.24 = 509,122.92 : x
  2. Step 2: Convert to fraction form
    891,071.40/1,229,565.24 = 509,122.92/x
  3. Step 3: Cross multiply
    891,071.40x = 1,229,565.24 × 509,122.92
  4. Step 4: Simplify right side
    891,071.40x = 625,999,845,319.30
  5. Step 5: Solve for x
    x = 625,999,845,319.30/891,071.40
  6. Step 6: Final answer
    x = 702,524.90

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Double scale
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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.