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Finding the Fourth Proportional to 423,555.93, 635,334.12 and 265,895.10

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Solution

The fourth proportional to 423,555.93, 635,334.12 and 265,895.10 is: 398,842.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,555.93 : 635,334.12 = 265,895.10 : x
  2. Step 2: Convert to fraction form
    423,555.93/635,334.12 = 265,895.10/x
  3. Step 3: Cross multiply
    423,555.93x = 635,334.12 × 265,895.10
  4. Step 4: Simplify right side
    423,555.93x = 168,932,224,864.67
  5. Step 5: Solve for x
    x = 168,932,224,864.67/423,555.93
  6. Step 6: Final answer
    x = 398,842.79

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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.