Home / 1,023.04-1,411.80-557.29

Finding the Fourth Proportional to 1,023.04, 1,411.80 and 557.29

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Solution

The fourth proportional to 1,023.04, 1,411.80 and 557.29 is: 769.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,023.04 : 1,411.80 = 557.29 : x
  2. Step 2: Convert to fraction form
    1,023.04/1,411.80 = 557.29/x
  3. Step 3: Cross multiply
    1,023.04x = 1,411.80 × 557.29
  4. Step 4: Simplify right side
    1,023.04x = 786,772.18
  5. Step 5: Solve for x
    x = 786,772.18/1,023.04
  6. Step 6: Final answer
    x = 769.06

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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.