Home / 738,896.40-1,108,355.49-487,785.06

Finding the Fourth Proportional to 738,896.40, 1,108,355.49 and 487,785.06

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Solution

The fourth proportional to 738,896.40, 1,108,355.49 and 487,785.06 is: 731,684.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,896.40 : 1,108,355.49 = 487,785.06 : x
  2. Step 2: Convert to fraction form
    738,896.40/1,108,355.49 = 487,785.06/x
  3. Step 3: Cross multiply
    738,896.40x = 1,108,355.49 × 487,785.06
  4. Step 4: Simplify right side
    738,896.40x = 540,639,249,190.98
  5. Step 5: Solve for x
    x = 540,639,249,190.98/738,896.40
  6. Step 6: Final answer
    x = 731,684.78

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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.