Home / 644,222.56-888,962.16-376,106.08

Finding the Fourth Proportional to 644,222.56, 888,962.16 and 376,106.08

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Solution

The fourth proportional to 644,222.56, 888,962.16 and 376,106.08 is: 518,988.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,222.56 : 888,962.16 = 376,106.08 : x
  2. Step 2: Convert to fraction form
    644,222.56/888,962.16 = 376,106.08/x
  3. Step 3: Cross multiply
    644,222.56x = 888,962.16 × 376,106.08
  4. Step 4: Simplify right side
    644,222.56x = 334,344,073,265.93
  5. Step 5: Solve for x
    x = 334,344,073,265.93/644,222.56
  6. Step 6: Final answer
    x = 518,988.46

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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.