Home / 1,253,731.50-1,730,149.47-717,187.50

Finding the Fourth Proportional to 1,253,731.50, 1,730,149.47 and 717,187.50

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Solution

The fourth proportional to 1,253,731.50, 1,730,149.47 and 717,187.50 is: 989,718.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,731.50 : 1,730,149.47 = 717,187.50 : x
  2. Step 2: Convert to fraction form
    1,253,731.50/1,730,149.47 = 717,187.50/x
  3. Step 3: Cross multiply
    1,253,731.50x = 1,730,149.47 × 717,187.50
  4. Step 4: Simplify right side
    1,253,731.50x = 1,240,841,573,015.63
  5. Step 5: Solve for x
    x = 1,240,841,573,015.63/1,253,731.50
  6. Step 6: Final answer
    x = 989,718.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.