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Finding the Fourth Proportional to 571,682.72, 788,916.76 and 313,554.41

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Solution

The fourth proportional to 571,682.72, 788,916.76 and 313,554.41 is: 432,702.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,682.72 : 788,916.76 = 313,554.41 : x
  2. Step 2: Convert to fraction form
    571,682.72/788,916.76 = 313,554.41/x
  3. Step 3: Cross multiply
    571,682.72x = 788,916.76 × 313,554.41
  4. Step 4: Simplify right side
    571,682.72x = 247,368,325,276.33
  5. Step 5: Solve for x
    x = 247,368,325,276.33/571,682.72
  6. Step 6: Final answer
    x = 432,702.12

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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.