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Finding the Fourth Proportional to 488,176.40, 732,696.60 and 288,246.80

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Solution

The fourth proportional to 488,176.40, 732,696.60 and 288,246.80 is: 432,625.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,176.40 : 732,696.60 = 288,246.80 : x
  2. Step 2: Convert to fraction form
    488,176.40/732,696.60 = 288,246.80/x
  3. Step 3: Cross multiply
    488,176.40x = 732,696.60 × 288,246.80
  4. Step 4: Simplify right side
    488,176.40x = 211,197,450,320.88
  5. Step 5: Solve for x
    x = 211,197,450,320.88/488,176.40
  6. Step 6: Final answer
    x = 432,625.28

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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.