Home / 663,621.37-915,875.24-377,184.51

Finding the Fourth Proportional to 663,621.37, 915,875.24 and 377,184.51

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Solution

The fourth proportional to 663,621.37, 915,875.24 and 377,184.51 is: 520,558.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,621.37 : 915,875.24 = 377,184.51 : x
  2. Step 2: Convert to fraction form
    663,621.37/915,875.24 = 377,184.51/x
  3. Step 3: Cross multiply
    663,621.37x = 915,875.24 × 377,184.51
  4. Step 4: Simplify right side
    663,621.37x = 345,453,951,734.61
  5. Step 5: Solve for x
    x = 345,453,951,734.61/663,621.37
  6. Step 6: Final answer
    x = 520,558.81

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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.