Home / 897,857.88-1,239,070.20-489,986.06

Finding the Fourth Proportional to 897,857.88, 1,239,070.20 and 489,986.06

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Solution

The fourth proportional to 897,857.88, 1,239,070.20 and 489,986.06 is: 676,195.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,857.88 : 1,239,070.20 = 489,986.06 : x
  2. Step 2: Convert to fraction form
    897,857.88/1,239,070.20 = 489,986.06/x
  3. Step 3: Cross multiply
    897,857.88x = 1,239,070.20 × 489,986.06
  4. Step 4: Simplify right side
    897,857.88x = 607,127,125,361.41
  5. Step 5: Solve for x
    x = 607,127,125,361.41/897,857.88
  6. Step 6: Final answer
    x = 676,195.13

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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.