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Finding the Fourth Proportional to 660,549.60, 989,512.20 and 360,493.20

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Solution

The fourth proportional to 660,549.60, 989,512.20 and 360,493.20 is: 540,023.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,549.60 : 989,512.20 = 360,493.20 : x
  2. Step 2: Convert to fraction form
    660,549.60/989,512.20 = 360,493.20/x
  3. Step 3: Cross multiply
    660,549.60x = 989,512.20 × 360,493.20
  4. Step 4: Simplify right side
    660,549.60x = 356,712,419,417.04
  5. Step 5: Solve for x
    x = 356,712,419,417.04/660,549.60
  6. Step 6: Final answer
    x = 540,023.67

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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.