Home / 860,784.09-1,290,913.56-691,903.95

Finding the Fourth Proportional to 860,784.09, 1,290,913.56 and 691,903.95

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Solution

The fourth proportional to 860,784.09, 1,290,913.56 and 691,903.95 is: 1,037,644.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,784.09 : 1,290,913.56 = 691,903.95 : x
  2. Step 2: Convert to fraction form
    860,784.09/1,290,913.56 = 691,903.95/x
  3. Step 3: Cross multiply
    860,784.09x = 1,290,913.56 × 691,903.95
  4. Step 4: Simplify right side
    860,784.09x = 893,188,191,272.56
  5. Step 5: Solve for x
    x = 893,188,191,272.56/860,784.09
  6. Step 6: Final answer
    x = 1,037,644.87

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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.