Home / 648,101.20-970,839.60-367,290.40

Finding the Fourth Proportional to 648,101.20, 970,839.60 and 367,290.40

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Solution

The fourth proportional to 648,101.20, 970,839.60 and 367,290.40 is: 550,191.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,101.20 : 970,839.60 = 367,290.40 : x
  2. Step 2: Convert to fraction form
    648,101.20/970,839.60 = 367,290.40/x
  3. Step 3: Cross multiply
    648,101.20x = 970,839.60 × 367,290.40
  4. Step 4: Simplify right side
    648,101.20x = 356,580,065,019.84
  5. Step 5: Solve for x
    x = 356,580,065,019.84/648,101.20
  6. Step 6: Final answer
    x = 550,191.95

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1.5x scale

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.