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Finding the Fourth Proportional to 750,911.80, 1,036,261.74 and 411,379

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Solution

The fourth proportional to 750,911.80, 1,036,261.74 and 411,379 is: 567,704.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,911.80 : 1,036,261.74 = 411,379 : x
  2. Step 2: Convert to fraction form
    750,911.80/1,036,261.74 = 411,379/x
  3. Step 3: Cross multiply
    750,911.80x = 1,036,261.74 × 411,379
  4. Step 4: Simplify right side
    750,911.80x = 426,296,318,339.46
  5. Step 5: Solve for x
    x = 426,296,318,339.46/750,911.80
  6. Step 6: Final answer
    x = 567,704.91

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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.