Home / 860,208.73-1,290,575.53-439,779.85

Finding the Fourth Proportional to 860,208.73, 1,290,575.53 and 439,779.85

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Solution

The fourth proportional to 860,208.73, 1,290,575.53 and 439,779.85 is: 659,803.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,208.73 : 1,290,575.53 = 439,779.85 : x
  2. Step 2: Convert to fraction form
    860,208.73/1,290,575.53 = 439,779.85/x
  3. Step 3: Cross multiply
    860,208.73x = 1,290,575.53 × 439,779.85
  4. Step 4: Simplify right side
    860,208.73x = 567,569,110,320.36
  5. Step 5: Solve for x
    x = 567,569,110,320.36/860,208.73
  6. Step 6: Final answer
    x = 659,803.94

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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.