Home / 855,253.89-1,282,519.40-256,300.29

Finding the Fourth Proportional to 855,253.89, 1,282,519.40 and 256,300.29

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Solution

The fourth proportional to 855,253.89, 1,282,519.40 and 256,300.29 is: 384,342.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,253.89 : 1,282,519.40 = 256,300.29 : x
  2. Step 2: Convert to fraction form
    855,253.89/1,282,519.40 = 256,300.29/x
  3. Step 3: Cross multiply
    855,253.89x = 1,282,519.40 × 256,300.29
  4. Step 4: Simplify right side
    855,253.89x = 328,710,096,716.17
  5. Step 5: Solve for x
    x = 328,710,096,716.17/855,253.89
  6. Step 6: Final answer
    x = 384,342.12

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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.