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Finding the Fourth Proportional to 1,207.45, 1,810.90 and 590.54

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Solution

The fourth proportional to 1,207.45, 1,810.90 and 590.54 is: 885.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207.45 : 1,810.90 = 590.54 : x
  2. Step 2: Convert to fraction form
    1,207.45/1,810.90 = 590.54/x
  3. Step 3: Cross multiply
    1,207.45x = 1,810.90 × 590.54
  4. Step 4: Simplify right side
    1,207.45x = 1,069,398.36
  5. Step 5: Solve for x
    x = 1,069,398.36/1,207.45
  6. Step 6: Final answer
    x = 885.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.