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Finding the Fourth Proportional to 866,750.65, 1,300,303.29 and 298,057.90

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Solution

The fourth proportional to 866,750.65, 1,300,303.29 and 298,057.90 is: 447,147.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,750.65 : 1,300,303.29 = 298,057.90 : x
  2. Step 2: Convert to fraction form
    866,750.65/1,300,303.29 = 298,057.90/x
  3. Step 3: Cross multiply
    866,750.65x = 1,300,303.29 × 298,057.90
  4. Step 4: Simplify right side
    866,750.65x = 387,565,667,980.49
  5. Step 5: Solve for x
    x = 387,565,667,980.49/866,750.65
  6. Step 6: Final answer
    x = 447,147.83

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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.