Home / 1,118,101.12-1,543,938.56-1,081,948.80

Finding the Fourth Proportional to 1,118,101.12, 1,543,938.56 and 1,081,948.80

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Solution

The fourth proportional to 1,118,101.12, 1,543,938.56 and 1,081,948.80 is: 1,494,017.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,101.12 : 1,543,938.56 = 1,081,948.80 : x
  2. Step 2: Convert to fraction form
    1,118,101.12/1,543,938.56 = 1,081,948.80/x
  3. Step 3: Cross multiply
    1,118,101.12x = 1,543,938.56 × 1,081,948.80
  4. Step 4: Simplify right side
    1,118,101.12x = 1,670,462,472,265.73
  5. Step 5: Solve for x
    x = 1,670,462,472,265.73/1,118,101.12
  6. Step 6: Final answer
    x = 1,494,017.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.