Home / 652,109.40-976,997.70-402,499.80

Finding the Fourth Proportional to 652,109.40, 976,997.70 and 402,499.80

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Solution

The fourth proportional to 652,109.40, 976,997.70 and 402,499.80 is: 603,029.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,109.40 : 976,997.70 = 402,499.80 : x
  2. Step 2: Convert to fraction form
    652,109.40/976,997.70 = 402,499.80/x
  3. Step 3: Cross multiply
    652,109.40x = 976,997.70 × 402,499.80
  4. Step 4: Simplify right side
    652,109.40x = 393,241,378,850.46
  5. Step 5: Solve for x
    x = 393,241,378,850.46/652,109.40
  6. Step 6: Final answer
    x = 603,029.77

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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.