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Finding the Fourth Proportional to 524,404.60, 786,607.14 and 130,420.60

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Solution

The fourth proportional to 524,404.60, 786,607.14 and 130,420.60 is: 195,630.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,404.60 : 786,607.14 = 130,420.60 : x
  2. Step 2: Convert to fraction form
    524,404.60/786,607.14 = 130,420.60/x
  3. Step 3: Cross multiply
    524,404.60x = 786,607.14 × 130,420.60
  4. Step 4: Simplify right side
    524,404.60x = 102,589,775,163.08
  5. Step 5: Solve for x
    x = 102,589,775,163.08/524,404.60
  6. Step 6: Final answer
    x = 195,630.96

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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.