Home / 1,161,920.76-1,603,498.86-645,672.73

Finding the Fourth Proportional to 1,161,920.76, 1,603,498.86 and 645,672.73

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Solution

The fourth proportional to 1,161,920.76, 1,603,498.86 and 645,672.73 is: 891,055.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,161,920.76 : 1,603,498.86 = 645,672.73 : x
  2. Step 2: Convert to fraction form
    1,161,920.76/1,603,498.86 = 645,672.73/x
  3. Step 3: Cross multiply
    1,161,920.76x = 1,603,498.86 × 645,672.73
  4. Step 4: Simplify right side
    1,161,920.76x = 1,035,335,475,242.23
  5. Step 5: Solve for x
    x = 1,035,335,475,242.23/1,161,920.76
  6. Step 6: Final answer
    x = 891,055.15

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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.