Home / 781,783.34-1,172,687.36-308,464.61

Finding the Fourth Proportional to 781,783.34, 1,172,687.36 and 308,464.61

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Solution

The fourth proportional to 781,783.34, 1,172,687.36 and 308,464.61 is: 462,701.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,783.34 : 1,172,687.36 = 308,464.61 : x
  2. Step 2: Convert to fraction form
    781,783.34/1,172,687.36 = 308,464.61/x
  3. Step 3: Cross multiply
    781,783.34x = 1,172,687.36 × 308,464.61
  4. Step 4: Simplify right side
    781,783.34x = 361,732,541,748.57
  5. Step 5: Solve for x
    x = 361,732,541,748.57/781,783.34
  6. Step 6: Final answer
    x = 462,701.78

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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.