Home / 480,979.66-721,468.68-192,921.16

Finding the Fourth Proportional to 480,979.66, 721,468.68 and 192,921.16

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Solution

The fourth proportional to 480,979.66, 721,468.68 and 192,921.16 is: 289,381.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,979.66 : 721,468.68 = 192,921.16 : x
  2. Step 2: Convert to fraction form
    480,979.66/721,468.68 = 192,921.16/x
  3. Step 3: Cross multiply
    480,979.66x = 721,468.68 × 192,921.16
  4. Step 4: Simplify right side
    480,979.66x = 139,186,574,649.27
  5. Step 5: Solve for x
    x = 139,186,574,649.27/480,979.66
  6. Step 6: Final answer
    x = 289,381.42

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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.