Home / 864,799.30-1,298,511.15-665,344.90

Finding the Fourth Proportional to 864,799.30, 1,298,511.15 and 665,344.90

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Solution

The fourth proportional to 864,799.30, 1,298,511.15 and 665,344.90 is: 999,026.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,799.30 : 1,298,511.15 = 665,344.90 : x
  2. Step 2: Convert to fraction form
    864,799.30/1,298,511.15 = 665,344.90/x
  3. Step 3: Cross multiply
    864,799.30x = 1,298,511.15 × 665,344.90
  4. Step 4: Simplify right side
    864,799.30x = 863,957,771,245.64
  5. Step 5: Solve for x
    x = 863,957,771,245.64/864,799.30
  6. Step 6: Final answer
    x = 999,026.91

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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.