Home / 1,294,985.60-1,940,404.80-851,235.20

Finding the Fourth Proportional to 1,294,985.60, 1,940,404.80 and 851,235.20

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Solution

The fourth proportional to 1,294,985.60, 1,940,404.80 and 851,235.20 is: 1,275,489.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,985.60 : 1,940,404.80 = 851,235.20 : x
  2. Step 2: Convert to fraction form
    1,294,985.60/1,940,404.80 = 851,235.20/x
  3. Step 3: Cross multiply
    1,294,985.60x = 1,940,404.80 × 851,235.20
  4. Step 4: Simplify right side
    1,294,985.60x = 1,651,740,868,008.96
  5. Step 5: Solve for x
    x = 1,651,740,868,008.96/1,294,985.60
  6. Step 6: Final answer
    x = 1,275,489.76

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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.