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Finding the Fourth Proportional to 494,718, 742,079.08 and 210,335.28

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Solution

The fourth proportional to 494,718, 742,079.08 and 210,335.28 is: 315,503.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,718 : 742,079.08 = 210,335.28 : x
  2. Step 2: Convert to fraction form
    494,718/742,079.08 = 210,335.28/x
  3. Step 3: Cross multiply
    494,718x = 742,079.08 × 210,335.28
  4. Step 4: Simplify right side
    494,718x = 156,085,411,073.94
  5. Step 5: Solve for x
    x = 156,085,411,073.94/494,718
  6. Step 6: Final answer
    x = 315,503.80

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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.