Home / 480,822.30-663,326.28-289,727.10

Finding the Fourth Proportional to 480,822.30, 663,326.28 and 289,727.10

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Solution

The fourth proportional to 480,822.30, 663,326.28 and 289,727.10 is: 399,697.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,822.30 : 663,326.28 = 289,727.10 : x
  2. Step 2: Convert to fraction form
    480,822.30/663,326.28 = 289,727.10/x
  3. Step 3: Cross multiply
    480,822.30x = 663,326.28 × 289,727.10
  4. Step 4: Simplify right side
    480,822.30x = 192,183,599,458.19
  5. Step 5: Solve for x
    x = 192,183,599,458.19/480,822.30
  6. Step 6: Final answer
    x = 399,697.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.