Home / 460,426.91-690,634.20-118,871.50

Finding the Fourth Proportional to 460,426.91, 690,634.20 and 118,871.50

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Solution

The fourth proportional to 460,426.91, 690,634.20 and 118,871.50 is: 178,305.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,426.91 : 690,634.20 = 118,871.50 : x
  2. Step 2: Convert to fraction form
    460,426.91/690,634.20 = 118,871.50/x
  3. Step 3: Cross multiply
    460,426.91x = 690,634.20 × 118,871.50
  4. Step 4: Simplify right side
    460,426.91x = 82,096,721,578.71
  5. Step 5: Solve for x
    x = 82,096,721,578.71/460,426.91
  6. Step 6: Final answer
    x = 178,305.66

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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.