Home / 549,272.20-823,217.10-487,064.20

Finding the Fourth Proportional to 549,272.20, 823,217.10 and 487,064.20

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Solution

The fourth proportional to 549,272.20, 823,217.10 and 487,064.20 is: 729,983.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,272.20 : 823,217.10 = 487,064.20 : x
  2. Step 2: Convert to fraction form
    549,272.20/823,217.10 = 487,064.20/x
  3. Step 3: Cross multiply
    549,272.20x = 823,217.10 × 487,064.20
  4. Step 4: Simplify right side
    549,272.20x = 400,959,578,237.82
  5. Step 5: Solve for x
    x = 400,959,578,237.82/549,272.20
  6. Step 6: Final answer
    x = 729,983.38

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1.5x scale

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.