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Finding the Fourth Proportional to 540,667.28, 811,450.20 and 288,223.76

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Solution

The fourth proportional to 540,667.28, 811,450.20 and 288,223.76 is: 432,575.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,667.28 : 811,450.20 = 288,223.76 : x
  2. Step 2: Convert to fraction form
    540,667.28/811,450.20 = 288,223.76/x
  3. Step 3: Cross multiply
    540,667.28x = 811,450.20 × 288,223.76
  4. Step 4: Simplify right side
    540,667.28x = 233,879,227,696.75
  5. Step 5: Solve for x
    x = 233,879,227,696.75/540,667.28
  6. Step 6: Final answer
    x = 432,575.15

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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.