Home / 831,353.10-1,247,029.65-298,927.95

Finding the Fourth Proportional to 831,353.10, 1,247,029.65 and 298,927.95

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Solution

The fourth proportional to 831,353.10, 1,247,029.65 and 298,927.95 is: 448,391.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,353.10 : 1,247,029.65 = 298,927.95 : x
  2. Step 2: Convert to fraction form
    831,353.10/1,247,029.65 = 298,927.95/x
  3. Step 3: Cross multiply
    831,353.10x = 1,247,029.65 × 298,927.95
  4. Step 4: Simplify right side
    831,353.10x = 372,772,016,863.72
  5. Step 5: Solve for x
    x = 372,772,016,863.72/831,353.10
  6. Step 6: Final answer
    x = 448,391.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.