Home / 897,853.01-1,239,063.32-489,981.12

Finding the Fourth Proportional to 897,853.01, 1,239,063.32 and 489,981.12

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Solution

The fourth proportional to 897,853.01, 1,239,063.32 and 489,981.12 is: 676,188.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,853.01 : 1,239,063.32 = 489,981.12 : x
  2. Step 2: Convert to fraction form
    897,853.01/1,239,063.32 = 489,981.12/x
  3. Step 3: Cross multiply
    897,853.01x = 1,239,063.32 × 489,981.12
  4. Step 4: Simplify right side
    897,853.01x = 607,117,633,284.52
  5. Step 5: Solve for x
    x = 607,117,633,284.52/897,853.01
  6. Step 6: Final answer
    x = 676,188.23

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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.