Home / 644,005.45-966,488.10-245,424.70

Finding the Fourth Proportional to 644,005.45, 966,488.10 and 245,424.70

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Solution

The fourth proportional to 644,005.45, 966,488.10 and 245,424.70 is: 368,319.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,005.45 : 966,488.10 = 245,424.70 : x
  2. Step 2: Convert to fraction form
    644,005.45/966,488.10 = 245,424.70/x
  3. Step 3: Cross multiply
    644,005.45x = 966,488.10 × 245,424.70
  4. Step 4: Simplify right side
    644,005.45x = 237,200,051,996.07
  5. Step 5: Solve for x
    x = 237,200,051,996.07/644,005.45
  6. Step 6: Final answer
    x = 368,319.95

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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.