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Finding the Fourth Proportional to 540,002.30, 810,003.45 and 288,059.90

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Solution

The fourth proportional to 540,002.30, 810,003.45 and 288,059.90 is: 432,089.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,002.30 : 810,003.45 = 288,059.90 : x
  2. Step 2: Convert to fraction form
    540,002.30/810,003.45 = 288,059.90/x
  3. Step 3: Cross multiply
    540,002.30x = 810,003.45 × 288,059.90
  4. Step 4: Simplify right side
    540,002.30x = 233,329,512,806.66
  5. Step 5: Solve for x
    x = 233,329,512,806.66/540,002.30
  6. Step 6: Final answer
    x = 432,089.85

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Similar ratio
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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.