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Finding the Fourth Proportional to 950.04, 1,312.16 and 634.77

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Solution

The fourth proportional to 950.04, 1,312.16 and 634.77 is: 876.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    950.04 : 1,312.16 = 634.77 : x
  2. Step 2: Convert to fraction form
    950.04/1,312.16 = 634.77/x
  3. Step 3: Cross multiply
    950.04x = 1,312.16 × 634.77
  4. Step 4: Simplify right side
    950.04x = 832,916.63
  5. Step 5: Solve for x
    x = 832,916.63/950.04
  6. Step 6: Final answer
    x = 876.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.