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Finding the Fourth Proportional to 1,042.06, 1,437.98 and 569.96

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Solution

The fourth proportional to 1,042.06, 1,437.98 and 569.96 is: 786.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,042.06 : 1,437.98 = 569.96 : x
  2. Step 2: Convert to fraction form
    1,042.06/1,437.98 = 569.96/x
  3. Step 3: Cross multiply
    1,042.06x = 1,437.98 × 569.96
  4. Step 4: Simplify right side
    1,042.06x = 819,591.08
  5. Step 5: Solve for x
    x = 819,591.08/1,042.06
  6. Step 6: Final answer
    x = 786.51

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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.