Home / 740,003.80-1,110,005.70-687,515.80

Finding the Fourth Proportional to 740,003.80, 1,110,005.70 and 687,515.80

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Solution

The fourth proportional to 740,003.80, 1,110,005.70 and 687,515.80 is: 1,031,273.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,003.80 : 1,110,005.70 = 687,515.80 : x
  2. Step 2: Convert to fraction form
    740,003.80/1,110,005.70 = 687,515.80/x
  3. Step 3: Cross multiply
    740,003.80x = 1,110,005.70 × 687,515.80
  4. Step 4: Simplify right side
    740,003.80x = 763,146,456,840.06
  5. Step 5: Solve for x
    x = 763,146,456,840.06/740,003.80
  6. Step 6: Final answer
    x = 1,031,273.70

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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.