Home / 763,439.42-1,144,688.91-257,952.64

Finding the Fourth Proportional to 763,439.42, 1,144,688.91 and 257,952.64

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Solution

The fourth proportional to 763,439.42, 1,144,688.91 and 257,952.64 is: 386,770.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,439.42 : 1,144,688.91 = 257,952.64 : x
  2. Step 2: Convert to fraction form
    763,439.42/1,144,688.91 = 257,952.64/x
  3. Step 3: Cross multiply
    763,439.42x = 1,144,688.91 × 257,952.64
  4. Step 4: Simplify right side
    763,439.42x = 295,275,520,589.78
  5. Step 5: Solve for x
    x = 295,275,520,589.78/763,439.42
  6. Step 6: Final answer
    x = 386,770.08

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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.