Home / 456,422.10-684,730.35-140,910.90

Finding the Fourth Proportional to 456,422.10, 684,730.35 and 140,910.90

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Solution

The fourth proportional to 456,422.10, 684,730.35 and 140,910.90 is: 211,396.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,422.10 : 684,730.35 = 140,910.90 : x
  2. Step 2: Convert to fraction form
    456,422.10/684,730.35 = 140,910.90/x
  3. Step 3: Cross multiply
    456,422.10x = 684,730.35 × 140,910.90
  4. Step 4: Simplify right side
    456,422.10x = 96,485,969,875.82
  5. Step 5: Solve for x
    x = 96,485,969,875.82/456,422.10
  6. Step 6: Final answer
    x = 211,396.36

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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.