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Finding the Fourth Proportional to 524,401.55, 786,600.08 and 145,321.20

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Solution

The fourth proportional to 524,401.55, 786,600.08 and 145,321.20 is: 217,981.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,401.55 : 786,600.08 = 145,321.20 : x
  2. Step 2: Convert to fraction form
    524,401.55/786,600.08 = 145,321.20/x
  3. Step 3: Cross multiply
    524,401.55x = 786,600.08 × 145,321.20
  4. Step 4: Simplify right side
    524,401.55x = 114,309,667,364.05
  5. Step 5: Solve for x
    x = 114,309,667,364.05/524,401.55
  6. Step 6: Final answer
    x = 217,981.18

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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.