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Finding the Fourth Proportional to 517,127.94, 713,135.07 and 345,052.89

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Solution

The fourth proportional to 517,127.94, 713,135.07 and 345,052.89 is: 475,838.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,127.94 : 713,135.07 = 345,052.89 : x
  2. Step 2: Convert to fraction form
    517,127.94/713,135.07 = 345,052.89/x
  3. Step 3: Cross multiply
    517,127.94x = 713,135.07 × 345,052.89
  4. Step 4: Simplify right side
    517,127.94x = 246,069,316,863.85
  5. Step 5: Solve for x
    x = 246,069,316,863.85/517,127.94
  6. Step 6: Final answer
    x = 475,838.37

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1.5x scale

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.