Home / 1,127,324.80-1,555,720.96-643,953.92

Finding the Fourth Proportional to 1,127,324.80, 1,555,720.96 and 643,953.92

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Solution

The fourth proportional to 1,127,324.80, 1,555,720.96 and 643,953.92 is: 888,663.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,324.80 : 1,555,720.96 = 643,953.92 : x
  2. Step 2: Convert to fraction form
    1,127,324.80/1,555,720.96 = 643,953.92/x
  3. Step 3: Cross multiply
    1,127,324.80x = 1,555,720.96 × 643,953.92
  4. Step 4: Simplify right side
    1,127,324.80x = 1,001,812,610,618.16
  5. Step 5: Solve for x
    x = 1,001,812,610,618.16/1,127,324.80
  6. Step 6: Final answer
    x = 888,663.68

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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.