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Finding the Fourth Proportional to 895.05, 1,235.25 and 580.47

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Solution

The fourth proportional to 895.05, 1,235.25 and 580.47 is: 801.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    895.05 : 1,235.25 = 580.47 : x
  2. Step 2: Convert to fraction form
    895.05/1,235.25 = 580.47/x
  3. Step 3: Cross multiply
    895.05x = 1,235.25 × 580.47
  4. Step 4: Simplify right side
    895.05x = 717,025.57
  5. Step 5: Solve for x
    x = 717,025.57/895.05
  6. Step 6: Final answer
    x = 801.10

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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.