Home / 738,999.60-1,108,936.80-487,008.60

Finding the Fourth Proportional to 738,999.60, 1,108,936.80 and 487,008.60

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Solution

The fourth proportional to 738,999.60, 1,108,936.80 and 487,008.60 is: 730,801.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,999.60 : 1,108,936.80 = 487,008.60 : x
  2. Step 2: Convert to fraction form
    738,999.60/1,108,936.80 = 487,008.60/x
  3. Step 3: Cross multiply
    738,999.60x = 1,108,936.80 × 487,008.60
  4. Step 4: Simplify right side
    738,999.60x = 540,061,758,456.48
  5. Step 5: Solve for x
    x = 540,061,758,456.48/738,999.60
  6. Step 6: Final answer
    x = 730,801.15

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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.