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Finding the Fourth Proportional to 635,645, 876,823.72 and 380,848.64

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Solution

The fourth proportional to 635,645, 876,823.72 and 380,848.64 is: 525,351.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,645 : 876,823.72 = 380,848.64 : x
  2. Step 2: Convert to fraction form
    635,645/876,823.72 = 380,848.64/x
  3. Step 3: Cross multiply
    635,645x = 876,823.72 × 380,848.64
  4. Step 4: Simplify right side
    635,645x = 333,937,121,281.74
  5. Step 5: Solve for x
    x = 333,937,121,281.74/635,645
  6. Step 6: Final answer
    x = 525,351.61

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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.