Home / 860,619.88-1,187,697.50-478,638.46

Finding the Fourth Proportional to 860,619.88, 1,187,697.50 and 478,638.46

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Solution

The fourth proportional to 860,619.88, 1,187,697.50 and 478,638.46 is: 660,544.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,619.88 : 1,187,697.50 = 478,638.46 : x
  2. Step 2: Convert to fraction form
    860,619.88/1,187,697.50 = 478,638.46/x
  3. Step 3: Cross multiply
    860,619.88x = 1,187,697.50 × 478,638.46
  4. Step 4: Simplify right side
    860,619.88x = 568,477,702,345.85
  5. Step 5: Solve for x
    x = 568,477,702,345.85/860,619.88
  6. Step 6: Final answer
    x = 660,544.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.