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Finding the Fourth Proportional to 879,896.41, 1,214,257.04 and 477,488.41

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Solution

The fourth proportional to 879,896.41, 1,214,257.04 and 477,488.41 is: 658,934.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,896.41 : 1,214,257.04 = 477,488.41 : x
  2. Step 2: Convert to fraction form
    879,896.41/1,214,257.04 = 477,488.41/x
  3. Step 3: Cross multiply
    879,896.41x = 1,214,257.04 × 477,488.41
  4. Step 4: Simplify right side
    879,896.41x = 579,793,663,360.91
  5. Step 5: Solve for x
    x = 579,793,663,360.91/879,896.41
  6. Step 6: Final answer
    x = 658,934.00

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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.