Home / 663,359.17-915,460.37-376,927.81

Finding the Fourth Proportional to 663,359.17, 915,460.37 and 376,927.81

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Solution

The fourth proportional to 663,359.17, 915,460.37 and 376,927.81 is: 520,174.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,359.17 : 915,460.37 = 376,927.81 : x
  2. Step 2: Convert to fraction form
    663,359.17/915,460.37 = 376,927.81/x
  3. Step 3: Cross multiply
    663,359.17x = 915,460.37 × 376,927.81
  4. Step 4: Simplify right side
    663,359.17x = 345,062,470,521.25
  5. Step 5: Solve for x
    x = 345,062,470,521.25/663,359.17
  6. Step 6: Final answer
    x = 520,174.42

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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.