Home / 1,314,425.20-1,971,637.80-865,652.80

Finding the Fourth Proportional to 1,314,425.20, 1,971,637.80 and 865,652.80

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Solution

The fourth proportional to 1,314,425.20, 1,971,637.80 and 865,652.80 is: 1,298,479.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314,425.20 : 1,971,637.80 = 865,652.80 : x
  2. Step 2: Convert to fraction form
    1,314,425.20/1,971,637.80 = 865,652.80/x
  3. Step 3: Cross multiply
    1,314,425.20x = 1,971,637.80 × 865,652.80
  4. Step 4: Simplify right side
    1,314,425.20x = 1,706,753,782,155.84
  5. Step 5: Solve for x
    x = 1,706,753,782,155.84/1,314,425.20
  6. Step 6: Final answer
    x = 1,298,479.20

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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.