Home / 779,897.28-1,169,845.92-281,261.28

Finding the Fourth Proportional to 779,897.28, 1,169,845.92 and 281,261.28

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Solution

The fourth proportional to 779,897.28, 1,169,845.92 and 281,261.28 is: 421,891.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,897.28 : 1,169,845.92 = 281,261.28 : x
  2. Step 2: Convert to fraction form
    779,897.28/1,169,845.92 = 281,261.28/x
  3. Step 3: Cross multiply
    779,897.28x = 1,169,845.92 × 281,261.28
  4. Step 4: Simplify right side
    779,897.28x = 329,032,360,861.98
  5. Step 5: Solve for x
    x = 329,032,360,861.98/779,897.28
  6. Step 6: Final answer
    x = 421,891.92

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.