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Finding the Fourth Proportional to 889.05, 1,332.94 and 340.77

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Solution

The fourth proportional to 889.05, 1,332.94 and 340.77 is: 510.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    889.05 : 1,332.94 = 340.77 : x
  2. Step 2: Convert to fraction form
    889.05/1,332.94 = 340.77/x
  3. Step 3: Cross multiply
    889.05x = 1,332.94 × 340.77
  4. Step 4: Simplify right side
    889.05x = 454,225.96
  5. Step 5: Solve for x
    x = 454,225.96/889.05
  6. Step 6: Final answer
    x = 510.91

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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.