Home / 1,330,479.60-1,995,719.40-488,857.20

Finding the Fourth Proportional to 1,330,479.60, 1,995,719.40 and 488,857.20

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Solution

The fourth proportional to 1,330,479.60, 1,995,719.40 and 488,857.20 is: 733,285.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,479.60 : 1,995,719.40 = 488,857.20 : x
  2. Step 2: Convert to fraction form
    1,330,479.60/1,995,719.40 = 488,857.20/x
  3. Step 3: Cross multiply
    1,330,479.60x = 1,995,719.40 × 488,857.20
  4. Step 4: Simplify right side
    1,330,479.60x = 975,621,797,869.68
  5. Step 5: Solve for x
    x = 975,621,797,869.68/1,330,479.60
  6. Step 6: Final answer
    x = 733,285.80

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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.