Home / 663,313.80-915,376.04-376,849.60

Finding the Fourth Proportional to 663,313.80, 915,376.04 and 376,849.60

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Solution

The fourth proportional to 663,313.80, 915,376.04 and 376,849.60 is: 520,054.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,313.80 : 915,376.04 = 376,849.60 : x
  2. Step 2: Convert to fraction form
    663,313.80/915,376.04 = 376,849.60/x
  3. Step 3: Cross multiply
    663,313.80x = 915,376.04 × 376,849.60
  4. Step 4: Simplify right side
    663,313.80x = 344,959,094,523.58
  5. Step 5: Solve for x
    x = 344,959,094,523.58/663,313.80
  6. Step 6: Final answer
    x = 520,054.15

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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.