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Finding the Fourth Proportional to 895.01, 1,234.76 and 580.32

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Solution

The fourth proportional to 895.01, 1,234.76 and 580.32 is: 800.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    895.01 : 1,234.76 = 580.32 : x
  2. Step 2: Convert to fraction form
    895.01/1,234.76 = 580.32/x
  3. Step 3: Cross multiply
    895.01x = 1,234.76 × 580.32
  4. Step 4: Simplify right side
    895.01x = 716,553.02
  5. Step 5: Solve for x
    x = 716,553.02/895.01
  6. Step 6: Final answer
    x = 800.61

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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.