Home / 897,845.85-1,239,053.63-489,974.02

Finding the Fourth Proportional to 897,845.85, 1,239,053.63 and 489,974.02

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Solution

The fourth proportional to 897,845.85, 1,239,053.63 and 489,974.02 is: 676,178.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,845.85 : 1,239,053.63 = 489,974.02 : x
  2. Step 2: Convert to fraction form
    897,845.85/1,239,053.63 = 489,974.02/x
  3. Step 3: Cross multiply
    897,845.85x = 1,239,053.63 × 489,974.02
  4. Step 4: Simplify right side
    897,845.85x = 607,104,088,086.69
  5. Step 5: Solve for x
    x = 607,104,088,086.69/897,845.85
  6. Step 6: Final answer
    x = 676,178.53

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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.