Home / 644,979.60-967,206.96-289,898.28

Finding the Fourth Proportional to 644,979.60, 967,206.96 and 289,898.28

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Solution

The fourth proportional to 644,979.60, 967,206.96 and 289,898.28 is: 434,729.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,979.60 : 967,206.96 = 289,898.28 : x
  2. Step 2: Convert to fraction form
    644,979.60/967,206.96 = 289,898.28/x
  3. Step 3: Cross multiply
    644,979.60x = 967,206.96 × 289,898.28
  4. Step 4: Simplify right side
    644,979.60x = 280,391,634,108.03
  5. Step 5: Solve for x
    x = 280,391,634,108.03/644,979.60
  6. Step 6: Final answer
    x = 434,729.46

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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.