Home / 2,761,805.60-4,142,708.40-869,127.20

Finding the Fourth Proportional to 2,761,805.60, 4,142,708.40 and 869,127.20

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Solution

The fourth proportional to 2,761,805.60, 4,142,708.40 and 869,127.20 is: 1,303,690.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,761,805.60 : 4,142,708.40 = 869,127.20 : x
  2. Step 2: Convert to fraction form
    2,761,805.60/4,142,708.40 = 869,127.20/x
  3. Step 3: Cross multiply
    2,761,805.60x = 4,142,708.40 × 869,127.20
  4. Step 4: Simplify right side
    2,761,805.60x = 3,600,540,552,108.48
  5. Step 5: Solve for x
    x = 3,600,540,552,108.48/2,761,805.60
  6. Step 6: Final answer
    x = 1,303,690.80

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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.