Home / 772,670.20-1,159,005.30-520,727.80

Finding the Fourth Proportional to 772,670.20, 1,159,005.30 and 520,727.80

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Solution

The fourth proportional to 772,670.20, 1,159,005.30 and 520,727.80 is: 781,091.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,670.20 : 1,159,005.30 = 520,727.80 : x
  2. Step 2: Convert to fraction form
    772,670.20/1,159,005.30 = 520,727.80/x
  3. Step 3: Cross multiply
    772,670.20x = 1,159,005.30 × 520,727.80
  4. Step 4: Simplify right side
    772,670.20x = 603,526,280,057.34
  5. Step 5: Solve for x
    x = 603,526,280,057.34/772,670.20
  6. Step 6: Final answer
    x = 781,091.70

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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.