Home / 786,309.12-1,179,308.16-225,400.32

Finding the Fourth Proportional to 786,309.12, 1,179,308.16 and 225,400.32

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Solution

The fourth proportional to 786,309.12, 1,179,308.16 and 225,400.32 is: 338,055.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,309.12 : 1,179,308.16 = 225,400.32 : x
  2. Step 2: Convert to fraction form
    786,309.12/1,179,308.16 = 225,400.32/x
  3. Step 3: Cross multiply
    786,309.12x = 1,179,308.16 × 225,400.32
  4. Step 4: Simplify right side
    786,309.12x = 265,816,436,642.61
  5. Step 5: Solve for x
    x = 265,816,436,642.61/786,309.12
  6. Step 6: Final answer
    x = 338,055.90

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1.5x scale

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.