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Finding the Fourth Proportional to 720,546.01, 1,080,780.03 and 365,550.81

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Solution

The fourth proportional to 720,546.01, 1,080,780.03 and 365,550.81 is: 548,306.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,546.01 : 1,080,780.03 = 365,550.81 : x
  2. Step 2: Convert to fraction form
    720,546.01/1,080,780.03 = 365,550.81/x
  3. Step 3: Cross multiply
    720,546.01x = 1,080,780.03 × 365,550.81
  4. Step 4: Simplify right side
    720,546.01x = 395,080,011,345.40
  5. Step 5: Solve for x
    x = 395,080,011,345.40/720,546.01
  6. Step 6: Final answer
    x = 548,306.43

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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.