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Finding the Fourth Proportional to 633,995.82, 873,443.79 and 442,706.22

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Solution

The fourth proportional to 633,995.82, 873,443.79 and 442,706.22 is: 609,907.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,995.82 : 873,443.79 = 442,706.22 : x
  2. Step 2: Convert to fraction form
    633,995.82/873,443.79 = 442,706.22/x
  3. Step 3: Cross multiply
    633,995.82x = 873,443.79 × 442,706.22
  4. Step 4: Simplify right side
    633,995.82x = 386,678,998,653.37
  5. Step 5: Solve for x
    x = 386,678,998,653.37/633,995.82
  6. Step 6: Final answer
    x = 609,907.80

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1.5x scale

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.