Home / 768,830.40-1,153,245.60-727,496.10

Finding the Fourth Proportional to 768,830.40, 1,153,245.60 and 727,496.10

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Solution

The fourth proportional to 768,830.40, 1,153,245.60 and 727,496.10 is: 1,091,244.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,830.40 : 1,153,245.60 = 727,496.10 : x
  2. Step 2: Convert to fraction form
    768,830.40/1,153,245.60 = 727,496.10/x
  3. Step 3: Cross multiply
    768,830.40x = 1,153,245.60 × 727,496.10
  4. Step 4: Simplify right side
    768,830.40x = 838,981,676,342.16
  5. Step 5: Solve for x
    x = 838,981,676,342.16/768,830.40
  6. Step 6: Final answer
    x = 1,091,244.15

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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.