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Finding the Fourth Proportional to 558,720.56, 837,611.40 and 453,278

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Solution

The fourth proportional to 558,720.56, 837,611.40 and 453,278 is: 679,536.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,720.56 : 837,611.40 = 453,278 : x
  2. Step 2: Convert to fraction form
    558,720.56/837,611.40 = 453,278/x
  3. Step 3: Cross multiply
    558,720.56x = 837,611.40 × 453,278
  4. Step 4: Simplify right side
    558,720.56x = 379,670,820,169.20
  5. Step 5: Solve for x
    x = 379,670,820,169.20/558,720.56
  6. Step 6: Final answer
    x = 679,536.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.