Home / 831,886.71-1,148,003.66-449,913.49

Finding the Fourth Proportional to 831,886.71, 1,148,003.66 and 449,913.49

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Solution

The fourth proportional to 831,886.71, 1,148,003.66 and 449,913.49 is: 620,880.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,886.71 : 1,148,003.66 = 449,913.49 : x
  2. Step 2: Convert to fraction form
    831,886.71/1,148,003.66 = 449,913.49/x
  3. Step 3: Cross multiply
    831,886.71x = 1,148,003.66 × 449,913.49
  4. Step 4: Simplify right side
    831,886.71x = 516,502,333,203.37
  5. Step 5: Solve for x
    x = 516,502,333,203.37/831,886.71
  6. Step 6: Final answer
    x = 620,880.62

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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.