Home / 885,876.78-1,329,026.86-286,838.58

Finding the Fourth Proportional to 885,876.78, 1,329,026.86 and 286,838.58

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Solution

The fourth proportional to 885,876.78, 1,329,026.86 and 286,838.58 is: 430,326.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,876.78 : 1,329,026.86 = 286,838.58 : x
  2. Step 2: Convert to fraction form
    885,876.78/1,329,026.86 = 286,838.58/x
  3. Step 3: Cross multiply
    885,876.78x = 1,329,026.86 × 286,838.58
  4. Step 4: Simplify right side
    885,876.78x = 381,216,177,304.26
  5. Step 5: Solve for x
    x = 381,216,177,304.26/885,876.78
  6. Step 6: Final answer
    x = 430,326.41

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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.