Home / 772,848.20-1,157,717.10-520,905.80

Finding the Fourth Proportional to 772,848.20, 1,157,717.10 and 520,905.80

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Solution

The fourth proportional to 772,848.20, 1,157,717.10 and 520,905.80 is: 780,310.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,848.20 : 1,157,717.10 = 520,905.80 : x
  2. Step 2: Convert to fraction form
    772,848.20/1,157,717.10 = 520,905.80/x
  3. Step 3: Cross multiply
    772,848.20x = 1,157,717.10 × 520,905.80
  4. Step 4: Simplify right side
    772,848.20x = 603,061,552,149.18
  5. Step 5: Solve for x
    x = 603,061,552,149.18/772,848.20
  6. Step 6: Final answer
    x = 780,310.48

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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.