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Finding the Fourth Proportional to 941.43, 1,411.20 and 530.91

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Solution

The fourth proportional to 941.43, 1,411.20 and 530.91 is: 795.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    941.43 : 1,411.20 = 530.91 : x
  2. Step 2: Convert to fraction form
    941.43/1,411.20 = 530.91/x
  3. Step 3: Cross multiply
    941.43x = 1,411.20 × 530.91
  4. Step 4: Simplify right side
    941.43x = 749,220.19
  5. Step 5: Solve for x
    x = 749,220.19/941.43
  6. Step 6: Final answer
    x = 795.83

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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.