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Finding the Fourth Proportional to 812,345.04, 1,121,048.01 and 467,991

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Solution

The fourth proportional to 812,345.04, 1,121,048.01 and 467,991 is: 645,834.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,345.04 : 1,121,048.01 = 467,991 : x
  2. Step 2: Convert to fraction form
    812,345.04/1,121,048.01 = 467,991/x
  3. Step 3: Cross multiply
    812,345.04x = 1,121,048.01 × 467,991
  4. Step 4: Simplify right side
    812,345.04x = 524,640,379,247.91
  5. Step 5: Solve for x
    x = 524,640,379,247.91/812,345.04
  6. Step 6: Final answer
    x = 645,834.41

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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.