Home / 513,428.98-769,815.42-246,658.72

Finding the Fourth Proportional to 513,428.98, 769,815.42 and 246,658.72

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Solution

The fourth proportional to 513,428.98, 769,815.42 and 246,658.72 is: 369,830.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,428.98 : 769,815.42 = 246,658.72 : x
  2. Step 2: Convert to fraction form
    513,428.98/769,815.42 = 246,658.72/x
  3. Step 3: Cross multiply
    513,428.98x = 769,815.42 × 246,658.72
  4. Step 4: Simplify right side
    513,428.98x = 189,881,686,133.46
  5. Step 5: Solve for x
    x = 189,881,686,133.46/513,428.98
  6. Step 6: Final answer
    x = 369,830.48

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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.