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Finding the Fourth Proportional to 677,655.48, 935,184.78 and 375,843

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Solution

The fourth proportional to 677,655.48, 935,184.78 and 375,843 is: 518,674.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,655.48 : 935,184.78 = 375,843 : x
  2. Step 2: Convert to fraction form
    677,655.48/935,184.78 = 375,843/x
  3. Step 3: Cross multiply
    677,655.48x = 935,184.78 × 375,843
  4. Step 4: Simplify right side
    677,655.48x = 351,482,653,269.54
  5. Step 5: Solve for x
    x = 351,482,653,269.54/677,655.48
  6. Step 6: Final answer
    x = 518,674.55

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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.