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Finding the Fourth Proportional to 524,474.40, 786,651.12 and 145,423.20

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Solution

The fourth proportional to 524,474.40, 786,651.12 and 145,423.20 is: 218,118.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,474.40 : 786,651.12 = 145,423.20 : x
  2. Step 2: Convert to fraction form
    524,474.40/786,651.12 = 145,423.20/x
  3. Step 3: Cross multiply
    524,474.40x = 786,651.12 × 145,423.20
  4. Step 4: Simplify right side
    524,474.40x = 114,397,323,153.98
  5. Step 5: Solve for x
    x = 114,397,323,153.98/524,474.40
  6. Step 6: Final answer
    x = 218,118.03

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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.