Home / 831,886.78-1,148,003.81-449,913.46

Finding the Fourth Proportional to 831,886.78, 1,148,003.81 and 449,913.46

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Solution

The fourth proportional to 831,886.78, 1,148,003.81 and 449,913.46 is: 620,880.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,886.78 : 1,148,003.81 = 449,913.46 : x
  2. Step 2: Convert to fraction form
    831,886.78/1,148,003.81 = 449,913.46/x
  3. Step 3: Cross multiply
    831,886.78x = 1,148,003.81 × 449,913.46
  4. Step 4: Simplify right side
    831,886.78x = 516,502,364,000.72
  5. Step 5: Solve for x
    x = 516,502,364,000.72/831,886.78
  6. Step 6: Final answer
    x = 620,880.60

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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.