Home / 665,530.27-997,895.55-260,239.69

Finding the Fourth Proportional to 665,530.27, 997,895.55 and 260,239.69

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Solution

The fourth proportional to 665,530.27, 997,895.55 and 260,239.69 is: 390,203.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,530.27 : 997,895.55 = 260,239.69 : x
  2. Step 2: Convert to fraction form
    665,530.27/997,895.55 = 260,239.69/x
  3. Step 3: Cross multiply
    665,530.27x = 997,895.55 × 260,239.69
  4. Step 4: Simplify right side
    665,530.27x = 259,692,023,730.64
  5. Step 5: Solve for x
    x = 259,692,023,730.64/665,530.27
  6. Step 6: Final answer
    x = 390,203.17

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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.