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Finding the Fourth Proportional to 575,089.79, 861,680.93 and 349,768.64

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Solution

The fourth proportional to 575,089.79, 861,680.93 and 349,768.64 is: 524,072.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,089.79 : 861,680.93 = 349,768.64 : x
  2. Step 2: Convert to fraction form
    575,089.79/861,680.93 = 349,768.64/x
  3. Step 3: Cross multiply
    575,089.79x = 861,680.93 × 349,768.64
  4. Step 4: Simplify right side
    575,089.79x = 301,388,960,942.79
  5. Step 5: Solve for x
    x = 301,388,960,942.79/575,089.79
  6. Step 6: Final answer
    x = 524,072.88

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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.