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Finding the Fourth Proportional to 648,005.20, 970,695.60 and 367,194.40

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Solution

The fourth proportional to 648,005.20, 970,695.60 and 367,194.40 is: 550,048.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,005.20 : 970,695.60 = 367,194.40 : x
  2. Step 2: Convert to fraction form
    648,005.20/970,695.60 = 367,194.40/x
  3. Step 3: Cross multiply
    648,005.20x = 970,695.60 × 367,194.40
  4. Step 4: Simplify right side
    648,005.20x = 356,433,988,424.64
  5. Step 5: Solve for x
    x = 356,433,988,424.64/648,005.20
  6. Step 6: Final answer
    x = 550,048.04

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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.