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Finding the Fourth Proportional to 423,555.42, 635,333.36 and 265,894.59

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Solution

The fourth proportional to 423,555.42, 635,333.36 and 265,894.59 is: 398,842.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,555.42 : 635,333.36 = 265,894.59 : x
  2. Step 2: Convert to fraction form
    423,555.42/635,333.36 = 265,894.59/x
  3. Step 3: Cross multiply
    423,555.42x = 635,333.36 × 265,894.59
  4. Step 4: Simplify right side
    423,555.42x = 168,931,705,523.59
  5. Step 5: Solve for x
    x = 168,931,705,523.59/423,555.42
  6. Step 6: Final answer
    x = 398,842.03

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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.