Home / 384,618.90-576,928.35-278,330.70

Finding the Fourth Proportional to 384,618.90, 576,928.35 and 278,330.70

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Solution

The fourth proportional to 384,618.90, 576,928.35 and 278,330.70 is: 417,496.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,618.90 : 576,928.35 = 278,330.70 : x
  2. Step 2: Convert to fraction form
    384,618.90/576,928.35 = 278,330.70/x
  3. Step 3: Cross multiply
    384,618.90x = 576,928.35 × 278,330.70
  4. Step 4: Simplify right side
    384,618.90x = 160,576,871,505.35
  5. Step 5: Solve for x
    x = 160,576,871,505.35/384,618.90
  6. Step 6: Final answer
    x = 417,496.05

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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.