Home / 643,031.15-964,349.70-444,626.51

Finding the Fourth Proportional to 643,031.15, 964,349.70 and 444,626.51

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Solution

The fourth proportional to 643,031.15, 964,349.70 and 444,626.51 is: 666,803.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,031.15 : 964,349.70 = 444,626.51 : x
  2. Step 2: Convert to fraction form
    643,031.15/964,349.70 = 444,626.51/x
  3. Step 3: Cross multiply
    643,031.15x = 964,349.70 × 444,626.51
  4. Step 4: Simplify right side
    643,031.15x = 428,775,441,530.55
  5. Step 5: Solve for x
    x = 428,775,441,530.55/643,031.15
  6. Step 6: Final answer
    x = 666,803.53

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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.