Home / 897,934.77-1,239,176.07-490,062.78

Finding the Fourth Proportional to 897,934.77, 1,239,176.07 and 490,062.78

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Solution

The fourth proportional to 897,934.77, 1,239,176.07 and 490,062.78 is: 676,300.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,934.77 : 1,239,176.07 = 490,062.78 : x
  2. Step 2: Convert to fraction form
    897,934.77/1,239,176.07 = 490,062.78/x
  3. Step 3: Cross multiply
    897,934.77x = 1,239,176.07 × 490,062.78
  4. Step 4: Simplify right side
    897,934.77x = 607,274,069,773.68
  5. Step 5: Solve for x
    x = 607,274,069,773.68/897,934.77
  6. Step 6: Final answer
    x = 676,300.87

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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.