Home / 1,121,711.74-1,547,954.19-612,414.10

Finding the Fourth Proportional to 1,121,711.74, 1,547,954.19 and 612,414.10

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Solution

The fourth proportional to 1,121,711.74, 1,547,954.19 and 612,414.10 is: 845,127.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,711.74 : 1,547,954.19 = 612,414.10 : x
  2. Step 2: Convert to fraction form
    1,121,711.74/1,547,954.19 = 612,414.10/x
  3. Step 3: Cross multiply
    1,121,711.74x = 1,547,954.19 × 612,414.10
  4. Step 4: Simplify right side
    1,121,711.74x = 947,988,972,110.08
  5. Step 5: Solve for x
    x = 947,988,972,110.08/1,121,711.74
  6. Step 6: Final answer
    x = 845,127.08

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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.