Home / 831,947.14-1,148,087.28-469,447.84

Finding the Fourth Proportional to 831,947.14, 1,148,087.28 and 469,447.84

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Solution

The fourth proportional to 831,947.14, 1,148,087.28 and 469,447.84 is: 647,838.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,947.14 : 1,148,087.28 = 469,447.84 : x
  2. Step 2: Convert to fraction form
    831,947.14/1,148,087.28 = 469,447.84/x
  3. Step 3: Cross multiply
    831,947.14x = 1,148,087.28 × 469,447.84
  4. Step 4: Simplify right side
    831,947.14x = 538,967,093,727.48
  5. Step 5: Solve for x
    x = 538,967,093,727.48/831,947.14
  6. Step 6: Final answer
    x = 647,838.15

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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.