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Finding the Fourth Proportional to 489,041.60, 733,562.40 and 330,411.20

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Solution

The fourth proportional to 489,041.60, 733,562.40 and 330,411.20 is: 495,616.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,041.60 : 733,562.40 = 330,411.20 : x
  2. Step 2: Convert to fraction form
    489,041.60/733,562.40 = 330,411.20/x
  3. Step 3: Cross multiply
    489,041.60x = 733,562.40 × 330,411.20
  4. Step 4: Simplify right side
    489,041.60x = 242,377,232,858.88
  5. Step 5: Solve for x
    x = 242,377,232,858.88/489,041.60
  6. Step 6: Final answer
    x = 495,616.80

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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.