Home / 1,162,166.72-1,603,831.19-645,930.90

Finding the Fourth Proportional to 1,162,166.72, 1,603,831.19 and 645,930.90

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Solution

The fourth proportional to 1,162,166.72, 1,603,831.19 and 645,930.90 is: 891,407.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,162,166.72 : 1,603,831.19 = 645,930.90 : x
  2. Step 2: Convert to fraction form
    1,162,166.72/1,603,831.19 = 645,930.90/x
  3. Step 3: Cross multiply
    1,162,166.72x = 1,603,831.19 × 645,930.90
  4. Step 4: Simplify right side
    1,162,166.72x = 1,035,964,120,775.12
  5. Step 5: Solve for x
    x = 1,035,964,120,775.12/1,162,166.72
  6. Step 6: Final answer
    x = 891,407.50

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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.