Home / 450,143.29-621,523.02-278,296.86

Finding the Fourth Proportional to 450,143.29, 621,523.02 and 278,296.86

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Solution

The fourth proportional to 450,143.29, 621,523.02 and 278,296.86 is: 384,250.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,143.29 : 621,523.02 = 278,296.86 : x
  2. Step 2: Convert to fraction form
    450,143.29/621,523.02 = 278,296.86/x
  3. Step 3: Cross multiply
    450,143.29x = 621,523.02 × 278,296.86
  4. Step 4: Simplify right side
    450,143.29x = 172,967,904,530.41
  5. Step 5: Solve for x
    x = 172,967,904,530.41/450,143.29
  6. Step 6: Final answer
    x = 384,250.77

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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.