Home / 855,932.86-1,284,112.50-256,905.10

Finding the Fourth Proportional to 855,932.86, 1,284,112.50 and 256,905.10

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Solution

The fourth proportional to 855,932.86, 1,284,112.50 and 256,905.10 is: 385,421.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,932.86 : 1,284,112.50 = 256,905.10 : x
  2. Step 2: Convert to fraction form
    855,932.86/1,284,112.50 = 256,905.10/x
  3. Step 3: Cross multiply
    855,932.86x = 1,284,112.50 × 256,905.10
  4. Step 4: Simplify right side
    855,932.86x = 329,895,050,223.75
  5. Step 5: Solve for x
    x = 329,895,050,223.75/855,932.86
  6. Step 6: Final answer
    x = 385,421.64

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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.