Home / 986,769.38-1,477,492.79-644,364.62

Finding the Fourth Proportional to 986,769.38, 1,477,492.79 and 644,364.62

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Solution

The fourth proportional to 986,769.38, 1,477,492.79 and 644,364.62 is: 964,809.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,769.38 : 1,477,492.79 = 644,364.62 : x
  2. Step 2: Convert to fraction form
    986,769.38/1,477,492.79 = 644,364.62/x
  3. Step 3: Cross multiply
    986,769.38x = 1,477,492.79 × 644,364.62
  4. Step 4: Simplify right side
    986,769.38x = 952,044,069,571.80
  5. Step 5: Solve for x
    x = 952,044,069,571.80/986,769.38
  6. Step 6: Final answer
    x = 964,809.09

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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.