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Finding the Fourth Proportional to 1,210.90, 1,816.76 and 594.62

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Solution

The fourth proportional to 1,210.90, 1,816.76 and 594.62 is: 892.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210.90 : 1,816.76 = 594.62 : x
  2. Step 2: Convert to fraction form
    1,210.90/1,816.76 = 594.62/x
  3. Step 3: Cross multiply
    1,210.90x = 1,816.76 × 594.62
  4. Step 4: Simplify right side
    1,210.90x = 1,080,281.83
  5. Step 5: Solve for x
    x = 1,080,281.83/1,210.90
  6. Step 6: Final answer
    x = 892.13

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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.