Home / 1,399,695.40-2,097,987.90-769,061.80

Finding the Fourth Proportional to 1,399,695.40, 2,097,987.90 and 769,061.80

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Solution

The fourth proportional to 1,399,695.40, 2,097,987.90 and 769,061.80 is: 1,152,738.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,695.40 : 2,097,987.90 = 769,061.80 : x
  2. Step 2: Convert to fraction form
    1,399,695.40/2,097,987.90 = 769,061.80/x
  3. Step 3: Cross multiply
    1,399,695.40x = 2,097,987.90 × 769,061.80
  4. Step 4: Simplify right side
    1,399,695.40x = 1,613,482,350,752.22
  5. Step 5: Solve for x
    x = 1,613,482,350,752.22/1,399,695.40
  6. Step 6: Final answer
    x = 1,152,738.20

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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.