Home / 1,098,509.60-1,644,999.60-722,496.80

Finding the Fourth Proportional to 1,098,509.60, 1,644,999.60 and 722,496.80

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Solution

The fourth proportional to 1,098,509.60, 1,644,999.60 and 722,496.80 is: 1,081,926.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,509.60 : 1,644,999.60 = 722,496.80 : x
  2. Step 2: Convert to fraction form
    1,098,509.60/1,644,999.60 = 722,496.80/x
  3. Step 3: Cross multiply
    1,098,509.60x = 1,644,999.60 × 722,496.80
  4. Step 4: Simplify right side
    1,098,509.60x = 1,188,506,947,001.28
  5. Step 5: Solve for x
    x = 1,188,506,947,001.28/1,098,509.60
  6. Step 6: Final answer
    x = 1,081,926.77

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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.