Home / 1,345,895.55-1,856,285.57-862,505.64

Finding the Fourth Proportional to 1,345,895.55, 1,856,285.57 and 862,505.64

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Solution

The fourth proportional to 1,345,895.55, 1,856,285.57 and 862,505.64 is: 1,189,584.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,895.55 : 1,856,285.57 = 862,505.64 : x
  2. Step 2: Convert to fraction form
    1,345,895.55/1,856,285.57 = 862,505.64/x
  3. Step 3: Cross multiply
    1,345,895.55x = 1,856,285.57 × 862,505.64
  4. Step 4: Simplify right side
    1,345,895.55x = 1,601,056,775,731.88
  5. Step 5: Solve for x
    x = 1,601,056,775,731.88/1,345,895.55
  6. Step 6: Final answer
    x = 1,189,584.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.