Home / 638,443.55-881,029.41-348,049.10

Finding the Fourth Proportional to 638,443.55, 881,029.41 and 348,049.10

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Solution

The fourth proportional to 638,443.55, 881,029.41 and 348,049.10 is: 480,295.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,443.55 : 881,029.41 = 348,049.10 : x
  2. Step 2: Convert to fraction form
    638,443.55/881,029.41 = 348,049.10/x
  3. Step 3: Cross multiply
    638,443.55x = 881,029.41 × 348,049.10
  4. Step 4: Simplify right side
    638,443.55x = 306,641,493,224.03
  5. Step 5: Solve for x
    x = 306,641,493,224.03/638,443.55
  6. Step 6: Final answer
    x = 480,295.39

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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.