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Finding the Fourth Proportional to 519,521.05, 717,102.39 and 304,747.93

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Solution

The fourth proportional to 519,521.05, 717,102.39 and 304,747.93 is: 420,647.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,521.05 : 717,102.39 = 304,747.93 : x
  2. Step 2: Convert to fraction form
    519,521.05/717,102.39 = 304,747.93/x
  3. Step 3: Cross multiply
    519,521.05x = 717,102.39 × 304,747.93
  4. Step 4: Simplify right side
    519,521.05x = 218,535,468,950.55
  5. Step 5: Solve for x
    x = 218,535,468,950.55/519,521.05
  6. Step 6: Final answer
    x = 420,647.96

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1.5x scale

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.