Home / 804,830.60-1,207,245.90-781,502.60

Finding the Fourth Proportional to 804,830.60, 1,207,245.90 and 781,502.60

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Solution

The fourth proportional to 804,830.60, 1,207,245.90 and 781,502.60 is: 1,172,253.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,830.60 : 1,207,245.90 = 781,502.60 : x
  2. Step 2: Convert to fraction form
    804,830.60/1,207,245.90 = 781,502.60/x
  3. Step 3: Cross multiply
    804,830.60x = 1,207,245.90 × 781,502.60
  4. Step 4: Simplify right side
    804,830.60x = 943,465,809,689.34
  5. Step 5: Solve for x
    x = 943,465,809,689.34/804,830.60
  6. Step 6: Final answer
    x = 1,172,253.90

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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.