Home / 831,938.42-1,147,976.28-469,341.11

Finding the Fourth Proportional to 831,938.42, 1,147,976.28 and 469,341.11

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Solution

The fourth proportional to 831,938.42, 1,147,976.28 and 469,341.11 is: 647,635.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,938.42 : 1,147,976.28 = 469,341.11 : x
  2. Step 2: Convert to fraction form
    831,938.42/1,147,976.28 = 469,341.11/x
  3. Step 3: Cross multiply
    831,938.42x = 1,147,976.28 × 469,341.11
  4. Step 4: Simplify right side
    831,938.42x = 538,792,464,378.81
  5. Step 5: Solve for x
    x = 538,792,464,378.81/831,938.42
  6. Step 6: Final answer
    x = 647,635.03

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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.