Home / 721,562.10-1,084,967.55-705,815.70

Finding the Fourth Proportional to 721,562.10, 1,084,967.55 and 705,815.70

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Solution

The fourth proportional to 721,562.10, 1,084,967.55 and 705,815.70 is: 1,061,290.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,562.10 : 1,084,967.55 = 705,815.70 : x
  2. Step 2: Convert to fraction form
    721,562.10/1,084,967.55 = 705,815.70/x
  3. Step 3: Cross multiply
    721,562.10x = 1,084,967.55 × 705,815.70
  4. Step 4: Simplify right side
    721,562.10x = 765,787,130,780.54
  5. Step 5: Solve for x
    x = 765,787,130,780.54/721,562.10
  6. Step 6: Final answer
    x = 1,061,290.68

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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.