Home / 721,521.60-1,084,906.80-705,775.20

Finding the Fourth Proportional to 721,521.60, 1,084,906.80 and 705,775.20

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Solution

The fourth proportional to 721,521.60, 1,084,906.80 and 705,775.20 is: 1,061,229.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,521.60 : 1,084,906.80 = 705,775.20 : x
  2. Step 2: Convert to fraction form
    721,521.60/1,084,906.80 = 705,775.20/x
  3. Step 3: Cross multiply
    721,521.60x = 1,084,906.80 × 705,775.20
  4. Step 4: Simplify right side
    721,521.60x = 765,700,313,751.36
  5. Step 5: Solve for x
    x = 765,700,313,751.36/721,521.60
  6. Step 6: Final answer
    x = 1,061,229.93

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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.