Home / 2,088,321.70-3,132,482.55-1,287,004.90

Finding the Fourth Proportional to 2,088,321.70, 3,132,482.55 and 1,287,004.90

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Solution

The fourth proportional to 2,088,321.70, 3,132,482.55 and 1,287,004.90 is: 1,930,507.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,088,321.70 : 3,132,482.55 = 1,287,004.90 : x
  2. Step 2: Convert to fraction form
    2,088,321.70/3,132,482.55 = 1,287,004.90/x
  3. Step 3: Cross multiply
    2,088,321.70x = 3,132,482.55 × 1,287,004.90
  4. Step 4: Simplify right side
    2,088,321.70x = 4,031,520,391,014.49
  5. Step 5: Solve for x
    x = 4,031,520,391,014.49/2,088,321.70
  6. Step 6: Final answer
    x = 1,930,507.35

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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.