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Finding the Fourth Proportional to 851,803.70, 1,277,705.55 and 782,990.90

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Solution

The fourth proportional to 851,803.70, 1,277,705.55 and 782,990.90 is: 1,174,486.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,803.70 : 1,277,705.55 = 782,990.90 : x
  2. Step 2: Convert to fraction form
    851,803.70/1,277,705.55 = 782,990.90/x
  3. Step 3: Cross multiply
    851,803.70x = 1,277,705.55 × 782,990.90
  4. Step 4: Simplify right side
    851,803.70x = 1,000,431,818,529.50
  5. Step 5: Solve for x
    x = 1,000,431,818,529.50/851,803.70
  6. Step 6: Final answer
    x = 1,174,486.35

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Similar ratio
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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.