Home / 966,085.80-1,449,128.70-487,788.90

Finding the Fourth Proportional to 966,085.80, 1,449,128.70 and 487,788.90

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Solution

The fourth proportional to 966,085.80, 1,449,128.70 and 487,788.90 is: 731,683.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    966,085.80 : 1,449,128.70 = 487,788.90 : x
  2. Step 2: Convert to fraction form
    966,085.80/1,449,128.70 = 487,788.90/x
  3. Step 3: Cross multiply
    966,085.80x = 1,449,128.70 × 487,788.90
  4. Step 4: Simplify right side
    966,085.80x = 706,868,894,531.43
  5. Step 5: Solve for x
    x = 706,868,894,531.43/966,085.80
  6. Step 6: Final answer
    x = 731,683.35

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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.