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Finding the Fourth Proportional to 558,099, 772,204.90 and 486,627.88

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Solution

The fourth proportional to 558,099, 772,204.90 and 486,627.88 is: 673,315.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,099 : 772,204.90 = 486,627.88 : x
  2. Step 2: Convert to fraction form
    558,099/772,204.90 = 486,627.88/x
  3. Step 3: Cross multiply
    558,099x = 772,204.90 × 486,627.88
  4. Step 4: Simplify right side
    558,099x = 375,776,433,412.61
  5. Step 5: Solve for x
    x = 375,776,433,412.61/558,099
  6. Step 6: Final answer
    x = 673,315.01

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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.