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Finding the Fourth Proportional to 879,835, 1,214,175.54 and 477,427

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Solution

The fourth proportional to 879,835, 1,214,175.54 and 477,427 is: 658,851.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,835 : 1,214,175.54 = 477,427 : x
  2. Step 2: Convert to fraction form
    879,835/1,214,175.54 = 477,427/x
  3. Step 3: Cross multiply
    879,835x = 1,214,175.54 × 477,427
  4. Step 4: Simplify right side
    879,835x = 579,680,185,535.58
  5. Step 5: Solve for x
    x = 579,680,185,535.58/879,835
  6. Step 6: Final answer
    x = 658,851.02

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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.