Home / 1,518,421.20-2,278,506.60-572,470.80

Finding the Fourth Proportional to 1,518,421.20, 2,278,506.60 and 572,470.80

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Solution

The fourth proportional to 1,518,421.20, 2,278,506.60 and 572,470.80 is: 859,036.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,518,421.20 : 2,278,506.60 = 572,470.80 : x
  2. Step 2: Convert to fraction form
    1,518,421.20/2,278,506.60 = 572,470.80/x
  3. Step 3: Cross multiply
    1,518,421.20x = 2,278,506.60 × 572,470.80
  4. Step 4: Simplify right side
    1,518,421.20x = 1,304,378,496,107.28
  5. Step 5: Solve for x
    x = 1,304,378,496,107.28/1,518,421.20
  6. Step 6: Final answer
    x = 859,036.01

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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.