Home / 860,777.34-1,290,903.44-691,897.20

Finding the Fourth Proportional to 860,777.34, 1,290,903.44 and 691,897.20

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Solution

The fourth proportional to 860,777.34, 1,290,903.44 and 691,897.20 is: 1,037,634.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,777.34 : 1,290,903.44 = 691,897.20 : x
  2. Step 2: Convert to fraction form
    860,777.34/1,290,903.44 = 691,897.20/x
  3. Step 3: Cross multiply
    860,777.34x = 1,290,903.44 × 691,897.20
  4. Step 4: Simplify right side
    860,777.34x = 893,172,472,146.88
  5. Step 5: Solve for x
    x = 893,172,472,146.88/860,777.34
  6. Step 6: Final answer
    x = 1,037,634.74

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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.