Home / 669,031.20-1,003,546.80-314,737.20

Finding the Fourth Proportional to 669,031.20, 1,003,546.80 and 314,737.20

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Solution

The fourth proportional to 669,031.20, 1,003,546.80 and 314,737.20 is: 472,105.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,031.20 : 1,003,546.80 = 314,737.20 : x
  2. Step 2: Convert to fraction form
    669,031.20/1,003,546.80 = 314,737.20/x
  3. Step 3: Cross multiply
    669,031.20x = 1,003,546.80 × 314,737.20
  4. Step 4: Simplify right side
    669,031.20x = 315,853,509,900.96
  5. Step 5: Solve for x
    x = 315,853,509,900.96/669,031.20
  6. Step 6: Final answer
    x = 472,105.80

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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.