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Finding the Fourth Proportional to 489,337.80, 734,006.70 and 453,908.40

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Solution

The fourth proportional to 489,337.80, 734,006.70 and 453,908.40 is: 680,862.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,337.80 : 734,006.70 = 453,908.40 : x
  2. Step 2: Convert to fraction form
    489,337.80/734,006.70 = 453,908.40/x
  3. Step 3: Cross multiply
    489,337.80x = 734,006.70 × 453,908.40
  4. Step 4: Simplify right side
    489,337.80x = 333,171,806,786.28
  5. Step 5: Solve for x
    x = 333,171,806,786.28/489,337.80
  6. Step 6: Final answer
    x = 680,862.60

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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.