Home / 681,284.72-1,021,927.08-260,689.52

Finding the Fourth Proportional to 681,284.72, 1,021,927.08 and 260,689.52

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Solution

The fourth proportional to 681,284.72, 1,021,927.08 and 260,689.52 is: 391,034.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,284.72 : 1,021,927.08 = 260,689.52 : x
  2. Step 2: Convert to fraction form
    681,284.72/1,021,927.08 = 260,689.52/x
  3. Step 3: Cross multiply
    681,284.72x = 1,021,927.08 × 260,689.52
  4. Step 4: Simplify right side
    681,284.72x = 266,405,679,960.20
  5. Step 5: Solve for x
    x = 266,405,679,960.20/681,284.72
  6. Step 6: Final answer
    x = 391,034.28

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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.