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Finding the Fourth Proportional to 555,679.93, 766,838.15 and 301,031.05

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Solution

The fourth proportional to 555,679.93, 766,838.15 and 301,031.05 is: 415,422.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,679.93 : 766,838.15 = 301,031.05 : x
  2. Step 2: Convert to fraction form
    555,679.93/766,838.15 = 301,031.05/x
  3. Step 3: Cross multiply
    555,679.93x = 766,838.15 × 301,031.05
  4. Step 4: Simplify right side
    555,679.93x = 230,842,093,474.56
  5. Step 5: Solve for x
    x = 230,842,093,474.56/555,679.93
  6. Step 6: Final answer
    x = 415,422.77

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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.