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Finding the Fourth Proportional to 558,690.63, 771,010.47 and 316,983.39

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Solution

The fourth proportional to 558,690.63, 771,010.47 and 316,983.39 is: 437,446.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,690.63 : 771,010.47 = 316,983.39 : x
  2. Step 2: Convert to fraction form
    558,690.63/771,010.47 = 316,983.39/x
  3. Step 3: Cross multiply
    558,690.63x = 771,010.47 × 316,983.39
  4. Step 4: Simplify right side
    558,690.63x = 244,397,512,506.09
  5. Step 5: Solve for x
    x = 244,397,512,506.09/558,690.63
  6. Step 6: Final answer
    x = 437,446.95

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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.