Home / 985,540.40-1,478,310.60-631,246.40

Finding the Fourth Proportional to 985,540.40, 1,478,310.60 and 631,246.40

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Solution

The fourth proportional to 985,540.40, 1,478,310.60 and 631,246.40 is: 946,869.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,540.40 : 1,478,310.60 = 631,246.40 : x
  2. Step 2: Convert to fraction form
    985,540.40/1,478,310.60 = 631,246.40/x
  3. Step 3: Cross multiply
    985,540.40x = 1,478,310.60 × 631,246.40
  4. Step 4: Simplify right side
    985,540.40x = 933,178,244,331.84
  5. Step 5: Solve for x
    x = 933,178,244,331.84/985,540.40
  6. Step 6: Final answer
    x = 946,869.60

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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.