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Finding the Fourth Proportional to 988,592.80, 1,482,802.80 and 323,744.80

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Solution

The fourth proportional to 988,592.80, 1,482,802.80 and 323,744.80 is: 485,588.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,592.80 : 1,482,802.80 = 323,744.80 : x
  2. Step 2: Convert to fraction form
    988,592.80/1,482,802.80 = 323,744.80/x
  3. Step 3: Cross multiply
    988,592.80x = 1,482,802.80 × 323,744.80
  4. Step 4: Simplify right side
    988,592.80x = 480,049,695,925.44
  5. Step 5: Solve for x
    x = 480,049,695,925.44/988,592.80
  6. Step 6: Final answer
    x = 485,588.91

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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.