Home / 912,270.80-1,368,276.60-313,259.60

Finding the Fourth Proportional to 912,270.80, 1,368,276.60 and 313,259.60

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Solution

The fourth proportional to 912,270.80, 1,368,276.60 and 313,259.60 is: 469,844.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,270.80 : 1,368,276.60 = 313,259.60 : x
  2. Step 2: Convert to fraction form
    912,270.80/1,368,276.60 = 313,259.60/x
  3. Step 3: Cross multiply
    912,270.80x = 1,368,276.60 × 313,259.60
  4. Step 4: Simplify right side
    912,270.80x = 428,625,780,405.36
  5. Step 5: Solve for x
    x = 428,625,780,405.36/912,270.80
  6. Step 6: Final answer
    x = 469,844.90

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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.