Home / 456,055.60-684,083.40-140,609.20

Finding the Fourth Proportional to 456,055.60, 684,083.40 and 140,609.20

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Solution

The fourth proportional to 456,055.60, 684,083.40 and 140,609.20 is: 210,913.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,055.60 : 684,083.40 = 140,609.20 : x
  2. Step 2: Convert to fraction form
    456,055.60/684,083.40 = 140,609.20/x
  3. Step 3: Cross multiply
    456,055.60x = 684,083.40 × 140,609.20
  4. Step 4: Simplify right side
    456,055.60x = 96,188,419,607.28
  5. Step 5: Solve for x
    x = 96,188,419,607.28/456,055.60
  6. Step 6: Final answer
    x = 210,913.80

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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.