Home / 680,729.59-1,020,460.07-231,143.05

Finding the Fourth Proportional to 680,729.59, 1,020,460.07 and 231,143.05

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Solution

The fourth proportional to 680,729.59, 1,020,460.07 and 231,143.05 is: 346,499.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,729.59 : 1,020,460.07 = 231,143.05 : x
  2. Step 2: Convert to fraction form
    680,729.59/1,020,460.07 = 231,143.05/x
  3. Step 3: Cross multiply
    680,729.59x = 1,020,460.07 × 231,143.05
  4. Step 4: Simplify right side
    680,729.59x = 235,872,249,276.15
  5. Step 5: Solve for x
    x = 235,872,249,276.15/680,729.59
  6. Step 6: Final answer
    x = 346,499.19

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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.