Home / 897,855.31-1,239,066.67-489,983.49

Finding the Fourth Proportional to 897,855.31, 1,239,066.67 and 489,983.49

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Solution

The fourth proportional to 897,855.31, 1,239,066.67 and 489,983.49 is: 676,191.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,855.31 : 1,239,066.67 = 489,983.49 : x
  2. Step 2: Convert to fraction form
    897,855.31/1,239,066.67 = 489,983.49/x
  3. Step 3: Cross multiply
    897,855.31x = 1,239,066.67 × 489,983.49
  4. Step 4: Simplify right side
    897,855.31x = 607,122,211,309.28
  5. Step 5: Solve for x
    x = 607,122,211,309.28/897,855.31
  6. Step 6: Final answer
    x = 676,191.59

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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.