Home / 897,837.68-1,239,042.28-489,965.80

Finding the Fourth Proportional to 897,837.68, 1,239,042.28 and 489,965.80

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Solution

The fourth proportional to 897,837.68, 1,239,042.28 and 489,965.80 is: 676,167.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,837.68 : 1,239,042.28 = 489,965.80 : x
  2. Step 2: Convert to fraction form
    897,837.68/1,239,042.28 = 489,965.80/x
  3. Step 3: Cross multiply
    897,837.68x = 1,239,042.28 × 489,965.80
  4. Step 4: Simplify right side
    897,837.68x = 607,088,337,631.50
  5. Step 5: Solve for x
    x = 607,088,337,631.50/897,837.68
  6. Step 6: Final answer
    x = 676,167.15

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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.