Home / 842,487.40-1,263,731.10-653,530.60

Finding the Fourth Proportional to 842,487.40, 1,263,731.10 and 653,530.60

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Solution

The fourth proportional to 842,487.40, 1,263,731.10 and 653,530.60 is: 980,295.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,487.40 : 1,263,731.10 = 653,530.60 : x
  2. Step 2: Convert to fraction form
    842,487.40/1,263,731.10 = 653,530.60/x
  3. Step 3: Cross multiply
    842,487.40x = 1,263,731.10 × 653,530.60
  4. Step 4: Simplify right side
    842,487.40x = 825,886,944,021.66
  5. Step 5: Solve for x
    x = 825,886,944,021.66/842,487.40
  6. Step 6: Final answer
    x = 980,295.90

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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.