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Finding the Fourth Proportional to 511,891.80, 767,837.70 and 473,400.60

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Solution

The fourth proportional to 511,891.80, 767,837.70 and 473,400.60 is: 710,100.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,891.80 : 767,837.70 = 473,400.60 : x
  2. Step 2: Convert to fraction form
    511,891.80/767,837.70 = 473,400.60/x
  3. Step 3: Cross multiply
    511,891.80x = 767,837.70 × 473,400.60
  4. Step 4: Simplify right side
    511,891.80x = 363,494,827,882.62
  5. Step 5: Solve for x
    x = 363,494,827,882.62/511,891.80
  6. Step 6: Final answer
    x = 710,100.90

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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.