Home / 1,121,580.96-1,547,780.24-719,172

Finding the Fourth Proportional to 1,121,580.96, 1,547,780.24 and 719,172

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Solution

The fourth proportional to 1,121,580.96, 1,547,780.24 and 719,172 is: 992,456.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,580.96 : 1,547,780.24 = 719,172 : x
  2. Step 2: Convert to fraction form
    1,121,580.96/1,547,780.24 = 719,172/x
  3. Step 3: Cross multiply
    1,121,580.96x = 1,547,780.24 × 719,172
  4. Step 4: Simplify right side
    1,121,580.96x = 1,113,120,210,761.28
  5. Step 5: Solve for x
    x = 1,113,120,210,761.28/1,121,580.96
  6. Step 6: Final answer
    x = 992,456.41

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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.