Home / 1,332,686.49-1,999,028.12-434,126.76

Finding the Fourth Proportional to 1,332,686.49, 1,999,028.12 and 434,126.76

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Solution

The fourth proportional to 1,332,686.49, 1,999,028.12 and 434,126.76 is: 651,189.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,332,686.49 : 1,999,028.12 = 434,126.76 : x
  2. Step 2: Convert to fraction form
    1,332,686.49/1,999,028.12 = 434,126.76/x
  3. Step 3: Cross multiply
    1,332,686.49x = 1,999,028.12 × 434,126.76
  4. Step 4: Simplify right side
    1,332,686.49x = 867,831,598,713.86
  5. Step 5: Solve for x
    x = 867,831,598,713.86/1,332,686.49
  6. Step 6: Final answer
    x = 651,189.61

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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.