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Finding the Fourth Proportional to 485,116.20, 727,674.30 and 360,700.20

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Solution

The fourth proportional to 485,116.20, 727,674.30 and 360,700.20 is: 541,050.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,116.20 : 727,674.30 = 360,700.20 : x
  2. Step 2: Convert to fraction form
    485,116.20/727,674.30 = 360,700.20/x
  3. Step 3: Cross multiply
    485,116.20x = 727,674.30 × 360,700.20
  4. Step 4: Simplify right side
    485,116.20x = 262,472,265,544.86
  5. Step 5: Solve for x
    x = 262,472,265,544.86/485,116.20
  6. Step 6: Final answer
    x = 541,050.30

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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.