Home / 1,117,155.80-1,541,788.47-658,418.09

Finding the Fourth Proportional to 1,117,155.80, 1,541,788.47 and 658,418.09

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Solution

The fourth proportional to 1,117,155.80, 1,541,788.47 and 658,418.09 is: 908,683.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117,155.80 : 1,541,788.47 = 658,418.09 : x
  2. Step 2: Convert to fraction form
    1,117,155.80/1,541,788.47 = 658,418.09/x
  3. Step 3: Cross multiply
    1,117,155.80x = 1,541,788.47 × 658,418.09
  4. Step 4: Simplify right side
    1,117,155.80x = 1,015,141,411,892.48
  5. Step 5: Solve for x
    x = 1,015,141,411,892.48/1,117,155.80
  6. Step 6: Final answer
    x = 908,683.83

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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.