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Finding the Fourth Proportional to 540,460.46, 745,909.52 and 311,013.03

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Solution

The fourth proportional to 540,460.46, 745,909.52 and 311,013.03 is: 429,240.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,460.46 : 745,909.52 = 311,013.03 : x
  2. Step 2: Convert to fraction form
    540,460.46/745,909.52 = 311,013.03/x
  3. Step 3: Cross multiply
    540,460.46x = 745,909.52 × 311,013.03
  4. Step 4: Simplify right side
    540,460.46x = 231,987,578,365.98
  5. Step 5: Solve for x
    x = 231,987,578,365.98/540,460.46
  6. Step 6: Final answer
    x = 429,240.62

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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.