Home / 855,712.52-1,283,492.23-256,807.43

Finding the Fourth Proportional to 855,712.52, 1,283,492.23 and 256,807.43

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Solution

The fourth proportional to 855,712.52, 1,283,492.23 and 256,807.43 is: 385,188.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,712.52 : 1,283,492.23 = 256,807.43 : x
  2. Step 2: Convert to fraction form
    855,712.52/1,283,492.23 = 256,807.43/x
  3. Step 3: Cross multiply
    855,712.52x = 1,283,492.23 × 256,807.43
  4. Step 4: Simplify right side
    855,712.52x = 329,610,341,011.27
  5. Step 5: Solve for x
    x = 329,610,341,011.27/855,712.52
  6. Step 6: Final answer
    x = 385,188.17

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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.