Home / 1,345,897.55-1,856,288.33-862,507.64

Finding the Fourth Proportional to 1,345,897.55, 1,856,288.33 and 862,507.64

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Solution

The fourth proportional to 1,345,897.55, 1,856,288.33 and 862,507.64 is: 1,189,587.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,897.55 : 1,856,288.33 = 862,507.64 : x
  2. Step 2: Convert to fraction form
    1,345,897.55/1,856,288.33 = 862,507.64/x
  3. Step 3: Cross multiply
    1,345,897.55x = 1,856,288.33 × 862,507.64
  4. Step 4: Simplify right side
    1,345,897.55x = 1,601,062,866,667.84
  5. Step 5: Solve for x
    x = 1,601,062,866,667.84/1,345,897.55
  6. Step 6: Final answer
    x = 1,189,587.47

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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.