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Finding the Fourth Proportional to 421,527.84, 581,442.48 and 294,156.96

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Solution

The fourth proportional to 421,527.84, 581,442.48 and 294,156.96 is: 405,751.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,527.84 : 581,442.48 = 294,156.96 : x
  2. Step 2: Convert to fraction form
    421,527.84/581,442.48 = 294,156.96/x
  3. Step 3: Cross multiply
    421,527.84x = 581,442.48 × 294,156.96
  4. Step 4: Simplify right side
    421,527.84x = 171,035,352,331.66
  5. Step 5: Solve for x
    x = 171,035,352,331.66/421,527.84
  6. Step 6: Final answer
    x = 405,751.02

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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.