Home / 988,821.60-1,486,342.80-970,159.20

Finding the Fourth Proportional to 988,821.60, 1,486,342.80 and 970,159.20

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Solution

The fourth proportional to 988,821.60, 1,486,342.80 and 970,159.20 is: 1,458,290.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,821.60 : 1,486,342.80 = 970,159.20 : x
  2. Step 2: Convert to fraction form
    988,821.60/1,486,342.80 = 970,159.20/x
  3. Step 3: Cross multiply
    988,821.60x = 1,486,342.80 × 970,159.20
  4. Step 4: Simplify right side
    988,821.60x = 1,441,989,141,773.76
  5. Step 5: Solve for x
    x = 1,441,989,141,773.76/988,821.60
  6. Step 6: Final answer
    x = 1,458,290.50

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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.