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Finding the Fourth Proportional to 516,900.80, 713,218.48 and 301,999.28

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Solution

The fourth proportional to 516,900.80, 713,218.48 and 301,999.28 is: 416,697.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,900.80 : 713,218.48 = 301,999.28 : x
  2. Step 2: Convert to fraction form
    516,900.80/713,218.48 = 301,999.28/x
  3. Step 3: Cross multiply
    516,900.80x = 713,218.48 × 301,999.28
  4. Step 4: Simplify right side
    516,900.80x = 215,391,467,442.69
  5. Step 5: Solve for x
    x = 215,391,467,442.69/516,900.80
  6. Step 6: Final answer
    x = 416,697.88

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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.