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Finding the Fourth Proportional to 841,704.84, 1,161,612 and 479,128.86

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Solution

The fourth proportional to 841,704.84, 1,161,612 and 479,128.86 is: 661,231.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,704.84 : 1,161,612 = 479,128.86 : x
  2. Step 2: Convert to fraction form
    841,704.84/1,161,612 = 479,128.86/x
  3. Step 3: Cross multiply
    841,704.84x = 1,161,612 × 479,128.86
  4. Step 4: Simplify right side
    841,704.84x = 556,561,833,322.32
  5. Step 5: Solve for x
    x = 556,561,833,322.32/841,704.84
  6. Step 6: Final answer
    x = 661,231.59

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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.