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Finding the Fourth Proportional to 520,026.58, 717,707.95 and 299,259.33

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Solution

The fourth proportional to 520,026.58, 717,707.95 and 299,259.33 is: 413,018.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,026.58 : 717,707.95 = 299,259.33 : x
  2. Step 2: Convert to fraction form
    520,026.58/717,707.95 = 299,259.33/x
  3. Step 3: Cross multiply
    520,026.58x = 717,707.95 × 299,259.33
  4. Step 4: Simplify right side
    520,026.58x = 214,780,797,654.79
  5. Step 5: Solve for x
    x = 214,780,797,654.79/520,026.58
  6. Step 6: Final answer
    x = 413,018.88

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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.