Home / 907,151-1,251,821.73-499,291.56

Finding the Fourth Proportional to 907,151, 1,251,821.73 and 499,291.56

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Solution

The fourth proportional to 907,151, 1,251,821.73 and 499,291.56 is: 688,996.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,151 : 1,251,821.73 = 499,291.56 : x
  2. Step 2: Convert to fraction form
    907,151/1,251,821.73 = 499,291.56/x
  3. Step 3: Cross multiply
    907,151x = 1,251,821.73 × 499,291.56
  4. Step 4: Simplify right side
    907,151x = 625,024,024,413.60
  5. Step 5: Solve for x
    x = 625,024,024,413.60/907,151
  6. Step 6: Final answer
    x = 688,996.68

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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.