Home / 891,018.30-1,336,397.85-259,866.30

Finding the Fourth Proportional to 891,018.30, 1,336,397.85 and 259,866.30

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Solution

The fourth proportional to 891,018.30, 1,336,397.85 and 259,866.30 is: 389,761.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,018.30 : 1,336,397.85 = 259,866.30 : x
  2. Step 2: Convert to fraction form
    891,018.30/1,336,397.85 = 259,866.30/x
  3. Step 3: Cross multiply
    891,018.30x = 1,336,397.85 × 259,866.30
  4. Step 4: Simplify right side
    891,018.30x = 347,284,764,607.46
  5. Step 5: Solve for x
    x = 347,284,764,607.46/891,018.30
  6. Step 6: Final answer
    x = 389,761.65

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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.