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Finding the Fourth Proportional to 667,495.94, 921,098.49 and 373,126.65

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Solution

The fourth proportional to 667,495.94, 921,098.49 and 373,126.65 is: 514,889.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,495.94 : 921,098.49 = 373,126.65 : x
  2. Step 2: Convert to fraction form
    667,495.94/921,098.49 = 373,126.65/x
  3. Step 3: Cross multiply
    667,495.94x = 921,098.49 × 373,126.65
  4. Step 4: Simplify right side
    667,495.94x = 343,686,398,047.49
  5. Step 5: Solve for x
    x = 343,686,398,047.49/667,495.94
  6. Step 6: Final answer
    x = 514,889.12

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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.