Home / 1,112,520.80-1,668,392.40-579,864.80

Finding the Fourth Proportional to 1,112,520.80, 1,668,392.40 and 579,864.80

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Solution

The fourth proportional to 1,112,520.80, 1,668,392.40 and 579,864.80 is: 869,594.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,520.80 : 1,668,392.40 = 579,864.80 : x
  2. Step 2: Convert to fraction form
    1,112,520.80/1,668,392.40 = 579,864.80/x
  3. Step 3: Cross multiply
    1,112,520.80x = 1,668,392.40 × 579,864.80
  4. Step 4: Simplify right side
    1,112,520.80x = 967,442,025,347.52
  5. Step 5: Solve for x
    x = 967,442,025,347.52/1,112,520.80
  6. Step 6: Final answer
    x = 869,594.55

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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.