Home / 680,259.20-1,020,496.80-231,022.40

Finding the Fourth Proportional to 680,259.20, 1,020,496.80 and 231,022.40

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Solution

The fourth proportional to 680,259.20, 1,020,496.80 and 231,022.40 is: 346,570.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,259.20 : 1,020,496.80 = 231,022.40 : x
  2. Step 2: Convert to fraction form
    680,259.20/1,020,496.80 = 231,022.40/x
  3. Step 3: Cross multiply
    680,259.20x = 1,020,496.80 × 231,022.40
  4. Step 4: Simplify right side
    680,259.20x = 235,757,619,928.32
  5. Step 5: Solve for x
    x = 235,757,619,928.32/680,259.20
  6. Step 6: Final answer
    x = 346,570.28

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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.