Home / 842,551.48-1,263,702.65-309,947.95

Finding the Fourth Proportional to 842,551.48, 1,263,702.65 and 309,947.95

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Solution

The fourth proportional to 842,551.48, 1,263,702.65 and 309,947.95 is: 464,876.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,551.48 : 1,263,702.65 = 309,947.95 : x
  2. Step 2: Convert to fraction form
    842,551.48/1,263,702.65 = 309,947.95/x
  3. Step 3: Cross multiply
    842,551.48x = 1,263,702.65 × 309,947.95
  4. Step 4: Simplify right side
    842,551.48x = 391,682,049,361.12
  5. Step 5: Solve for x
    x = 391,682,049,361.12/842,551.48
  6. Step 6: Final answer
    x = 464,876.10

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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.