Home / 884,139.20-1,326,208.80-509,724.80

Finding the Fourth Proportional to 884,139.20, 1,326,208.80 and 509,724.80

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Solution

The fourth proportional to 884,139.20, 1,326,208.80 and 509,724.80 is: 764,587.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,139.20 : 1,326,208.80 = 509,724.80 : x
  2. Step 2: Convert to fraction form
    884,139.20/1,326,208.80 = 509,724.80/x
  3. Step 3: Cross multiply
    884,139.20x = 1,326,208.80 × 509,724.80
  4. Step 4: Simplify right side
    884,139.20x = 676,001,515,338.24
  5. Step 5: Solve for x
    x = 676,001,515,338.24/884,139.20
  6. Step 6: Final answer
    x = 764,587.20

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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.