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Finding the Fourth Proportional to 879,883.35, 1,214,239 and 477,475.35

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Solution

The fourth proportional to 879,883.35, 1,214,239 and 477,475.35 is: 658,915.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,883.35 : 1,214,239 = 477,475.35 : x
  2. Step 2: Convert to fraction form
    879,883.35/1,214,239 = 477,475.35/x
  3. Step 3: Cross multiply
    879,883.35x = 1,214,239 × 477,475.35
  4. Step 4: Simplify right side
    879,883.35x = 579,769,191,508.65
  5. Step 5: Solve for x
    x = 579,769,191,508.65/879,883.35
  6. Step 6: Final answer
    x = 658,915.97

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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.