Home / 897,112.50-1,238,045.15-489,236.70

Finding the Fourth Proportional to 897,112.50, 1,238,045.15 and 489,236.70

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Solution

The fourth proportional to 897,112.50, 1,238,045.15 and 489,236.70 is: 675,162.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,112.50 : 1,238,045.15 = 489,236.70 : x
  2. Step 2: Convert to fraction form
    897,112.50/1,238,045.15 = 489,236.70/x
  3. Step 3: Cross multiply
    897,112.50x = 1,238,045.15 × 489,236.70
  4. Step 4: Simplify right side
    897,112.50x = 605,697,121,190.82
  5. Step 5: Solve for x
    x = 605,697,121,190.82/897,112.50
  6. Step 6: Final answer
    x = 675,162.95

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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.