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Finding the Fourth Proportional to 847.01, 1,168.48 and 497.45

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Solution

The fourth proportional to 847.01, 1,168.48 and 497.45 is: 686.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    847.01 : 1,168.48 = 497.45 : x
  2. Step 2: Convert to fraction form
    847.01/1,168.48 = 497.45/x
  3. Step 3: Cross multiply
    847.01x = 1,168.48 × 497.45
  4. Step 4: Simplify right side
    847.01x = 581,260.38
  5. Step 5: Solve for x
    x = 581,260.38/847.01
  6. Step 6: Final answer
    x = 686.25

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Double scale
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1.5x scale

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.