Home / 1,259,649.60-1,889,488.80-313,022.40

Finding the Fourth Proportional to 1,259,649.60, 1,889,488.80 and 313,022.40

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Solution

The fourth proportional to 1,259,649.60, 1,889,488.80 and 313,022.40 is: 469,537.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,649.60 : 1,889,488.80 = 313,022.40 : x
  2. Step 2: Convert to fraction form
    1,259,649.60/1,889,488.80 = 313,022.40/x
  3. Step 3: Cross multiply
    1,259,649.60x = 1,889,488.80 × 313,022.40
  4. Step 4: Simplify right side
    1,259,649.60x = 591,452,318,949.12
  5. Step 5: Solve for x
    x = 591,452,318,949.12/1,259,649.60
  6. Step 6: Final answer
    x = 469,537.18

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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.