Home / 664,724.48-997,338.01-260,205.79

Finding the Fourth Proportional to 664,724.48, 997,338.01 and 260,205.79

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Solution

The fourth proportional to 664,724.48, 997,338.01 and 260,205.79 is: 390,407.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,724.48 : 997,338.01 = 260,205.79 : x
  2. Step 2: Convert to fraction form
    664,724.48/997,338.01 = 260,205.79/x
  3. Step 3: Cross multiply
    664,724.48x = 997,338.01 × 260,205.79
  4. Step 4: Simplify right side
    664,724.48x = 259,513,122,620.99
  5. Step 5: Solve for x
    x = 259,513,122,620.99/664,724.48
  6. Step 6: Final answer
    x = 390,407.05

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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.