Home / 1,211,479.20-1,817,218.80-739,087.20

Finding the Fourth Proportional to 1,211,479.20, 1,817,218.80 and 739,087.20

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Solution

The fourth proportional to 1,211,479.20, 1,817,218.80 and 739,087.20 is: 1,108,630.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,479.20 : 1,817,218.80 = 739,087.20 : x
  2. Step 2: Convert to fraction form
    1,211,479.20/1,817,218.80 = 739,087.20/x
  3. Step 3: Cross multiply
    1,211,479.20x = 1,817,218.80 × 739,087.20
  4. Step 4: Simplify right side
    1,211,479.20x = 1,343,083,154,679.36
  5. Step 5: Solve for x
    x = 1,343,083,154,679.36/1,211,479.20
  6. Step 6: Final answer
    x = 1,108,630.80

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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.