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Finding the Fourth Proportional to 797,989, 1,101,247.86 and 440,316.04

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Solution

The fourth proportional to 797,989, 1,101,247.86 and 440,316.04 is: 607,648.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    797,989 : 1,101,247.86 = 440,316.04 : x
  2. Step 2: Convert to fraction form
    797,989/1,101,247.86 = 440,316.04/x
  3. Step 3: Cross multiply
    797,989x = 1,101,247.86 × 440,316.04
  4. Step 4: Simplify right side
    797,989x = 484,897,096,773.67
  5. Step 5: Solve for x
    x = 484,897,096,773.67/797,989
  6. Step 6: Final answer
    x = 607,648.85

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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.