Home / 1,259,617.13-1,889,427.05-312,987.84

Finding the Fourth Proportional to 1,259,617.13, 1,889,427.05 and 312,987.84

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Solution

The fourth proportional to 1,259,617.13, 1,889,427.05 and 312,987.84 is: 469,482.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,617.13 : 1,889,427.05 = 312,987.84 : x
  2. Step 2: Convert to fraction form
    1,259,617.13/1,889,427.05 = 312,987.84/x
  3. Step 3: Cross multiply
    1,259,617.13x = 1,889,427.05 × 312,987.84
  4. Step 4: Simplify right side
    1,259,617.13x = 591,367,691,217.07
  5. Step 5: Solve for x
    x = 591,367,691,217.07/1,259,617.13
  6. Step 6: Final answer
    x = 469,482.10

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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.