Home / 1,221,409.24-1,686,418.31-814,470.50

Finding the Fourth Proportional to 1,221,409.24, 1,686,418.31 and 814,470.50

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Solution

The fourth proportional to 1,221,409.24, 1,686,418.31 and 814,470.50 is: 1,124,551.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,409.24 : 1,686,418.31 = 814,470.50 : x
  2. Step 2: Convert to fraction form
    1,221,409.24/1,686,418.31 = 814,470.50/x
  3. Step 3: Cross multiply
    1,221,409.24x = 1,686,418.31 × 814,470.50
  4. Step 4: Simplify right side
    1,221,409.24x = 1,373,537,964,154.86
  5. Step 5: Solve for x
    x = 1,373,537,964,154.86/1,221,409.24
  6. Step 6: Final answer
    x = 1,124,551.80

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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.