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Finding the Fourth Proportional to 481,784.81, 721,888.82 and 291,668.93

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Solution

The fourth proportional to 481,784.81, 721,888.82 and 291,668.93 is: 437,026.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,784.81 : 721,888.82 = 291,668.93 : x
  2. Step 2: Convert to fraction form
    481,784.81/721,888.82 = 291,668.93/x
  3. Step 3: Cross multiply
    481,784.81x = 721,888.82 × 291,668.93
  4. Step 4: Simplify right side
    481,784.81x = 210,552,534,640.57
  5. Step 5: Solve for x
    x = 210,552,534,640.57/481,784.81
  6. Step 6: Final answer
    x = 437,026.10

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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.