Home / 860,327.88-1,187,245.26-478,351.32

Finding the Fourth Proportional to 860,327.88, 1,187,245.26 and 478,351.32

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Solution

The fourth proportional to 860,327.88, 1,187,245.26 and 478,351.32 is: 660,120.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,327.88 : 1,187,245.26 = 478,351.32 : x
  2. Step 2: Convert to fraction form
    860,327.88/1,187,245.26 = 478,351.32/x
  3. Step 3: Cross multiply
    860,327.88x = 1,187,245.26 × 478,351.32
  4. Step 4: Simplify right side
    860,327.88x = 567,920,337,284.74
  5. Step 5: Solve for x
    x = 567,920,337,284.74/860,327.88
  6. Step 6: Final answer
    x = 660,120.81

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Double scale
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1.5x scale

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.