Home / 6,558,779.28-9,817,990.74-4,279,395.60

Finding the Fourth Proportional to 6,558,779.28, 9,817,990.74 and 4,279,395.60

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Solution

The fourth proportional to 6,558,779.28, 9,817,990.74 and 4,279,395.60 is: 6,405,927.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,558,779.28 : 9,817,990.74 = 4,279,395.60 : x
  2. Step 2: Convert to fraction form
    6,558,779.28/9,817,990.74 = 4,279,395.60/x
  3. Step 3: Cross multiply
    6,558,779.28x = 9,817,990.74 × 4,279,395.60
  4. Step 4: Simplify right side
    6,558,779.28x = 42,015,066,373,596.74
  5. Step 5: Solve for x
    x = 42,015,066,373,596.74/6,558,779.28
  6. Step 6: Final answer
    x = 6,405,927.78

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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.