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Finding the Fourth Proportional to 807.34, 1,113.49 and 541.69

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Solution

The fourth proportional to 807.34, 1,113.49 and 541.69 is: 747.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    807.34 : 1,113.49 = 541.69 : x
  2. Step 2: Convert to fraction form
    807.34/1,113.49 = 541.69/x
  3. Step 3: Cross multiply
    807.34x = 1,113.49 × 541.69
  4. Step 4: Simplify right side
    807.34x = 603,166.40
  5. Step 5: Solve for x
    x = 603,166.40/807.34
  6. Step 6: Final answer
    x = 747.10

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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.