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Finding the Fourth Proportional to 895.02, 1,235.19 and 545.66

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Solution

The fourth proportional to 895.02, 1,235.19 and 545.66 is: 753.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    895.02 : 1,235.19 = 545.66 : x
  2. Step 2: Convert to fraction form
    895.02/1,235.19 = 545.66/x
  3. Step 3: Cross multiply
    895.02x = 1,235.19 × 545.66
  4. Step 4: Simplify right side
    895.02x = 673,993.78
  5. Step 5: Solve for x
    x = 673,993.78/895.02
  6. Step 6: Final answer
    x = 753.05

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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.