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Finding the Fourth Proportional to 831,353.13, 1,147,169.83 and 468,755.39

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Solution

The fourth proportional to 831,353.13, 1,147,169.83 and 468,755.39 is: 646,827.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,353.13 : 1,147,169.83 = 468,755.39 : x
  2. Step 2: Convert to fraction form
    831,353.13/1,147,169.83 = 468,755.39/x
  3. Step 3: Cross multiply
    831,353.13x = 1,147,169.83 × 468,755.39
  4. Step 4: Simplify right side
    831,353.13x = 537,742,041,057.88
  5. Step 5: Solve for x
    x = 537,742,041,057.88/831,353.13
  6. Step 6: Final answer
    x = 646,827.47

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Double scale
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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.