Home / 1,127,428.86-1,555,867.11-618,130.14

Finding the Fourth Proportional to 1,127,428.86, 1,555,867.11 and 618,130.14

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Solution

The fourth proportional to 1,127,428.86, 1,555,867.11 and 618,130.14 is: 853,027.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,428.86 : 1,555,867.11 = 618,130.14 : x
  2. Step 2: Convert to fraction form
    1,127,428.86/1,555,867.11 = 618,130.14/x
  3. Step 3: Cross multiply
    1,127,428.86x = 1,555,867.11 × 618,130.14
  4. Step 4: Simplify right side
    1,127,428.86x = 961,728,354,525.70
  5. Step 5: Solve for x
    x = 961,728,354,525.70/1,127,428.86
  6. Step 6: Final answer
    x = 853,027.97

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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.