Home / 2,088,359.20-3,132,538.80-1,287,042.40

Finding the Fourth Proportional to 2,088,359.20, 3,132,538.80 and 1,287,042.40

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Solution

The fourth proportional to 2,088,359.20, 3,132,538.80 and 1,287,042.40 is: 1,930,563.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,088,359.20 : 3,132,538.80 = 1,287,042.40 : x
  2. Step 2: Convert to fraction form
    2,088,359.20/3,132,538.80 = 1,287,042.40/x
  3. Step 3: Cross multiply
    2,088,359.20x = 3,132,538.80 × 1,287,042.40
  4. Step 4: Simplify right side
    2,088,359.20x = 4,031,710,255,245.12
  5. Step 5: Solve for x
    x = 4,031,710,255,245.12/2,088,359.20
  6. Step 6: Final answer
    x = 1,930,563.60

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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.