Home / 807,687.40-1,211,531.10-471,108.10

Finding the Fourth Proportional to 807,687.40, 1,211,531.10 and 471,108.10

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Solution

The fourth proportional to 807,687.40, 1,211,531.10 and 471,108.10 is: 706,662.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,687.40 : 1,211,531.10 = 471,108.10 : x
  2. Step 2: Convert to fraction form
    807,687.40/1,211,531.10 = 471,108.10/x
  3. Step 3: Cross multiply
    807,687.40x = 1,211,531.10 × 471,108.10
  4. Step 4: Simplify right side
    807,687.40x = 570,762,114,611.91
  5. Step 5: Solve for x
    x = 570,762,114,611.91/807,687.40
  6. Step 6: Final answer
    x = 706,662.15

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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.