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Finding the Fourth Proportional to 574,520, 861,795.36 and 195,440

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Solution

The fourth proportional to 574,520, 861,795.36 and 195,440 is: 293,165.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,520 : 861,795.36 = 195,440 : x
  2. Step 2: Convert to fraction form
    574,520/861,795.36 = 195,440/x
  3. Step 3: Cross multiply
    574,520x = 861,795.36 × 195,440
  4. Step 4: Simplify right side
    574,520x = 168,429,285,158.40
  5. Step 5: Solve for x
    x = 168,429,285,158.40/574,520
  6. Step 6: Final answer
    x = 293,165.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.