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Finding the Fourth Proportional to 550,951.20, 826,912.80 and 326,030.40

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Solution

The fourth proportional to 550,951.20, 826,912.80 and 326,030.40 is: 489,333.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,951.20 : 826,912.80 = 326,030.40 : x
  2. Step 2: Convert to fraction form
    550,951.20/826,912.80 = 326,030.40/x
  3. Step 3: Cross multiply
    550,951.20x = 826,912.80 × 326,030.40
  4. Step 4: Simplify right side
    550,951.20x = 269,598,710,949.12
  5. Step 5: Solve for x
    x = 269,598,710,949.12/550,951.20
  6. Step 6: Final answer
    x = 489,333.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.