Home / 986,650.18-1,479,843.81-312,799.60

Finding the Fourth Proportional to 986,650.18, 1,479,843.81 and 312,799.60

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Solution

The fourth proportional to 986,650.18, 1,479,843.81 and 312,799.60 is: 469,157.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,650.18 : 1,479,843.81 = 312,799.60 : x
  2. Step 2: Convert to fraction form
    986,650.18/1,479,843.81 = 312,799.60/x
  3. Step 3: Cross multiply
    986,650.18x = 1,479,843.81 × 312,799.60
  4. Step 4: Simplify right side
    986,650.18x = 462,894,551,830.48
  5. Step 5: Solve for x
    x = 462,894,551,830.48/986,650.18
  6. Step 6: Final answer
    x = 469,157.72

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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.