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Finding the Fourth Proportional to 555,031.68, 765,946.02 and 300,382.84

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Solution

The fourth proportional to 555,031.68, 765,946.02 and 300,382.84 is: 414,529.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,031.68 : 765,946.02 = 300,382.84 : x
  2. Step 2: Convert to fraction form
    555,031.68/765,946.02 = 300,382.84/x
  3. Step 3: Cross multiply
    555,031.68x = 765,946.02 × 300,382.84
  4. Step 4: Simplify right side
    555,031.68x = 230,077,040,774.30
  5. Step 5: Solve for x
    x = 230,077,040,774.30/555,031.68
  6. Step 6: Final answer
    x = 414,529.56

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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.