Home / 643,031.46-964,350.16-444,626.82

Finding the Fourth Proportional to 643,031.46, 964,350.16 and 444,626.82

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Solution

The fourth proportional to 643,031.46, 964,350.16 and 444,626.82 is: 666,803.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,031.46 : 964,350.16 = 444,626.82 : x
  2. Step 2: Convert to fraction form
    643,031.46/964,350.16 = 444,626.82/x
  3. Step 3: Cross multiply
    643,031.46x = 964,350.16 × 444,626.82
  4. Step 4: Simplify right side
    643,031.46x = 428,775,943,895.72
  5. Step 5: Solve for x
    x = 428,775,943,895.72/643,031.46
  6. Step 6: Final answer
    x = 666,803.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.