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Finding the Fourth Proportional to 879,884.91, 1,214,241.17 and 477,476.91

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Solution

The fourth proportional to 879,884.91, 1,214,241.17 and 477,476.91 is: 658,918.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,884.91 : 1,214,241.17 = 477,476.91 : x
  2. Step 2: Convert to fraction form
    879,884.91/1,214,241.17 = 477,476.91/x
  3. Step 3: Cross multiply
    879,884.91x = 1,214,241.17 × 477,476.91
  4. Step 4: Simplify right side
    879,884.91x = 579,772,121,846.39
  5. Step 5: Solve for x
    x = 579,772,121,846.39/879,884.91
  6. Step 6: Final answer
    x = 658,918.13

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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.