Home / 519,497.20-779,271.40-270,665.20

Finding the Fourth Proportional to 519,497.20, 779,271.40 and 270,665.20

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Solution

The fourth proportional to 519,497.20, 779,271.40 and 270,665.20 is: 406,011.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,497.20 : 779,271.40 = 270,665.20 : x
  2. Step 2: Convert to fraction form
    519,497.20/779,271.40 = 270,665.20/x
  3. Step 3: Cross multiply
    519,497.20x = 779,271.40 × 270,665.20
  4. Step 4: Simplify right side
    519,497.20x = 210,921,649,335.28
  5. Step 5: Solve for x
    x = 210,921,649,335.28/519,497.20
  6. Step 6: Final answer
    x = 406,011.14

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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.