Home / 1,352,988.20-1,867,153.88-772,199.70

Finding the Fourth Proportional to 1,352,988.20, 1,867,153.88 and 772,199.70

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Solution

The fourth proportional to 1,352,988.20, 1,867,153.88 and 772,199.70 is: 1,065,652.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,352,988.20 : 1,867,153.88 = 772,199.70 : x
  2. Step 2: Convert to fraction form
    1,352,988.20/1,867,153.88 = 772,199.70/x
  3. Step 3: Cross multiply
    1,352,988.20x = 1,867,153.88 × 772,199.70
  4. Step 4: Simplify right side
    1,352,988.20x = 1,441,815,665,989.84
  5. Step 5: Solve for x
    x = 1,441,815,665,989.84/1,352,988.20
  6. Step 6: Final answer
    x = 1,065,652.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.