Home / 831,957.70-1,148,101.71-449,984.50

Finding the Fourth Proportional to 831,957.70, 1,148,101.71 and 449,984.50

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Solution

The fourth proportional to 831,957.70, 1,148,101.71 and 449,984.50 is: 620,978.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,957.70 : 1,148,101.71 = 449,984.50 : x
  2. Step 2: Convert to fraction form
    831,957.70/1,148,101.71 = 449,984.50/x
  3. Step 3: Cross multiply
    831,957.70x = 1,148,101.71 × 449,984.50
  4. Step 4: Simplify right side
    831,957.70x = 516,627,973,923.50
  5. Step 5: Solve for x
    x = 516,627,973,923.50/831,957.70
  6. Step 6: Final answer
    x = 620,978.66

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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.