Home / 1,438,831.30-2,158,246.95-1,377,400.90

Finding the Fourth Proportional to 1,438,831.30, 2,158,246.95 and 1,377,400.90

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Solution

The fourth proportional to 1,438,831.30, 2,158,246.95 and 1,377,400.90 is: 2,066,101.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,831.30 : 2,158,246.95 = 1,377,400.90 : x
  2. Step 2: Convert to fraction form
    1,438,831.30/2,158,246.95 = 1,377,400.90/x
  3. Step 3: Cross multiply
    1,438,831.30x = 2,158,246.95 × 1,377,400.90
  4. Step 4: Simplify right side
    1,438,831.30x = 2,972,771,291,352.26
  5. Step 5: Solve for x
    x = 2,972,771,291,352.26/1,438,831.30
  6. Step 6: Final answer
    x = 2,066,101.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.