Home / 377,621.86-520,852.77-248,519.20

Finding the Fourth Proportional to 377,621.86, 520,852.77 and 248,519.20

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Solution

The fourth proportional to 377,621.86, 520,852.77 and 248,519.20 is: 342,781.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,621.86 : 520,852.77 = 248,519.20 : x
  2. Step 2: Convert to fraction form
    377,621.86/520,852.77 = 248,519.20/x
  3. Step 3: Cross multiply
    377,621.86x = 520,852.77 × 248,519.20
  4. Step 4: Simplify right side
    377,621.86x = 129,441,913,718.18
  5. Step 5: Solve for x
    x = 129,441,913,718.18/377,621.86
  6. Step 6: Final answer
    x = 342,781.83

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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.