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Finding the Fourth Proportional to 988,808.80, 1,483,213.20 and 240,854.80

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Solution

The fourth proportional to 988,808.80, 1,483,213.20 and 240,854.80 is: 361,282.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,808.80 : 1,483,213.20 = 240,854.80 : x
  2. Step 2: Convert to fraction form
    988,808.80/1,483,213.20 = 240,854.80/x
  3. Step 3: Cross multiply
    988,808.80x = 1,483,213.20 × 240,854.80
  4. Step 4: Simplify right side
    988,808.80x = 357,239,018,643.36
  5. Step 5: Solve for x
    x = 357,239,018,643.36/988,808.80
  6. Step 6: Final answer
    x = 361,282.20

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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.