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Finding the Fourth Proportional to 978,277.30, 1,467,415.95 and 862,803.70

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Solution

The fourth proportional to 978,277.30, 1,467,415.95 and 862,803.70 is: 1,294,205.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,277.30 : 1,467,415.95 = 862,803.70 : x
  2. Step 2: Convert to fraction form
    978,277.30/1,467,415.95 = 862,803.70/x
  3. Step 3: Cross multiply
    978,277.30x = 1,467,415.95 × 862,803.70
  4. Step 4: Simplify right side
    978,277.30x = 1,266,091,911,099.01
  5. Step 5: Solve for x
    x = 1,266,091,911,099.01/978,277.30
  6. Step 6: Final answer
    x = 1,294,205.55

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.