Home / 385,234.20-577,268.10-260,429.40

Finding the Fourth Proportional to 385,234.20, 577,268.10 and 260,429.40

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Solution

The fourth proportional to 385,234.20, 577,268.10 and 260,429.40 is: 390,249.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,234.20 : 577,268.10 = 260,429.40 : x
  2. Step 2: Convert to fraction form
    385,234.20/577,268.10 = 260,429.40/x
  3. Step 3: Cross multiply
    385,234.20x = 577,268.10 × 260,429.40
  4. Step 4: Simplify right side
    385,234.20x = 150,337,584,922.14
  5. Step 5: Solve for x
    x = 150,337,584,922.14/385,234.20
  6. Step 6: Final answer
    x = 390,249.84

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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.