Home / 860,336.38-1,187,257.02-478,359.82

Finding the Fourth Proportional to 860,336.38, 1,187,257.02 and 478,359.82

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Solution

The fourth proportional to 860,336.38, 1,187,257.02 and 478,359.82 is: 660,132.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,336.38 : 1,187,257.02 = 478,359.82 : x
  2. Step 2: Convert to fraction form
    860,336.38/1,187,257.02 = 478,359.82/x
  3. Step 3: Cross multiply
    860,336.38x = 1,187,257.02 × 478,359.82
  4. Step 4: Simplify right side
    860,336.38x = 567,936,054,380.94
  5. Step 5: Solve for x
    x = 567,936,054,380.94/860,336.38
  6. Step 6: Final answer
    x = 660,132.56

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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.