Home / 1,479,308.80-2,219,036.10-770,720.80

Finding the Fourth Proportional to 1,479,308.80, 2,219,036.10 and 770,720.80

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Solution

The fourth proportional to 1,479,308.80, 2,219,036.10 and 770,720.80 is: 1,156,119.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,479,308.80 : 2,219,036.10 = 770,720.80 : x
  2. Step 2: Convert to fraction form
    1,479,308.80/2,219,036.10 = 770,720.80/x
  3. Step 3: Cross multiply
    1,479,308.80x = 2,219,036.10 × 770,720.80
  4. Step 4: Simplify right side
    1,479,308.80x = 1,710,257,278,220.88
  5. Step 5: Solve for x
    x = 1,710,257,278,220.88/1,479,308.80
  6. Step 6: Final answer
    x = 1,156,119.18

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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.