Home / 891,549.50-1,230,359.92-489,141.50

Finding the Fourth Proportional to 891,549.50, 1,230,359.92 and 489,141.50

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Solution

The fourth proportional to 891,549.50, 1,230,359.92 and 489,141.50 is: 675,027.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,549.50 : 1,230,359.92 = 489,141.50 : x
  2. Step 2: Convert to fraction form
    891,549.50/1,230,359.92 = 489,141.50/x
  3. Step 3: Cross multiply
    891,549.50x = 1,230,359.92 × 489,141.50
  4. Step 4: Simplify right side
    891,549.50x = 601,820,096,808.68
  5. Step 5: Solve for x
    x = 601,820,096,808.68/891,549.50
  6. Step 6: Final answer
    x = 675,027.13

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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.