Home / 831,242.50-1,147,091.72-468,663.20

Finding the Fourth Proportional to 831,242.50, 1,147,091.72 and 468,663.20

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Solution

The fourth proportional to 831,242.50, 1,147,091.72 and 468,663.20 is: 646,742.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,242.50 : 1,147,091.72 = 468,663.20 : x
  2. Step 2: Convert to fraction form
    831,242.50/1,147,091.72 = 468,663.20/x
  3. Step 3: Cross multiply
    831,242.50x = 1,147,091.72 × 468,663.20
  4. Step 4: Simplify right side
    831,242.50x = 537,599,676,188.70
  5. Step 5: Solve for x
    x = 537,599,676,188.70/831,242.50
  6. Step 6: Final answer
    x = 646,742.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.