Home / 921,146.06-1,381,156.27-441,520.63

Finding the Fourth Proportional to 921,146.06, 1,381,156.27 and 441,520.63

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Solution

The fourth proportional to 921,146.06, 1,381,156.27 and 441,520.63 is: 662,011.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,146.06 : 1,381,156.27 = 441,520.63 : x
  2. Step 2: Convert to fraction form
    921,146.06/1,381,156.27 = 441,520.63/x
  3. Step 3: Cross multiply
    921,146.06x = 1,381,156.27 × 441,520.63
  4. Step 4: Simplify right side
    921,146.06x = 609,808,981,902.16
  5. Step 5: Solve for x
    x = 609,808,981,902.16/921,146.06
  6. Step 6: Final answer
    x = 662,011.17

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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.