Home / 823,492.40-1,233,683.40-422,769.20

Finding the Fourth Proportional to 823,492.40, 1,233,683.40 and 422,769.20

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Solution

The fourth proportional to 823,492.40, 1,233,683.40 and 422,769.20 is: 633,355.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,492.40 : 1,233,683.40 = 422,769.20 : x
  2. Step 2: Convert to fraction form
    823,492.40/1,233,683.40 = 422,769.20/x
  3. Step 3: Cross multiply
    823,492.40x = 1,233,683.40 × 422,769.20
  4. Step 4: Simplify right side
    823,492.40x = 521,563,344,071.28
  5. Step 5: Solve for x
    x = 521,563,344,071.28/823,492.40
  6. Step 6: Final answer
    x = 633,355.38

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1.5x scale

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.