Home / 850,612.86-1,275,876.88-318,094.74

Finding the Fourth Proportional to 850,612.86, 1,275,876.88 and 318,094.74

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Solution

The fourth proportional to 850,612.86, 1,275,876.88 and 318,094.74 is: 477,126.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,612.86 : 1,275,876.88 = 318,094.74 : x
  2. Step 2: Convert to fraction form
    850,612.86/1,275,876.88 = 318,094.74/x
  3. Step 3: Cross multiply
    850,612.86x = 1,275,876.88 × 318,094.74
  4. Step 4: Simplify right side
    850,612.86x = 405,849,724,415.61
  5. Step 5: Solve for x
    x = 405,849,724,415.61/850,612.86
  6. Step 6: Final answer
    x = 477,126.25

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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.