Home / 856,830.40-1,285,245.60-502,244.80

Finding the Fourth Proportional to 856,830.40, 1,285,245.60 and 502,244.80

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Solution

The fourth proportional to 856,830.40, 1,285,245.60 and 502,244.80 is: 753,367.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,830.40 : 1,285,245.60 = 502,244.80 : x
  2. Step 2: Convert to fraction form
    856,830.40/1,285,245.60 = 502,244.80/x
  3. Step 3: Cross multiply
    856,830.40x = 1,285,245.60 × 502,244.80
  4. Step 4: Simplify right side
    856,830.40x = 645,507,919,322.88
  5. Step 5: Solve for x
    x = 645,507,919,322.88/856,830.40
  6. Step 6: Final answer
    x = 753,367.20

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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.