Home / 862,018.08-1,293,024.69-388,148.64

Finding the Fourth Proportional to 862,018.08, 1,293,024.69 and 388,148.64

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Solution

The fourth proportional to 862,018.08, 1,293,024.69 and 388,148.64 is: 582,221.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,018.08 : 1,293,024.69 = 388,148.64 : x
  2. Step 2: Convert to fraction form
    862,018.08/1,293,024.69 = 388,148.64/x
  3. Step 3: Cross multiply
    862,018.08x = 1,293,024.69 × 388,148.64
  4. Step 4: Simplify right side
    862,018.08x = 501,885,774,909.92
  5. Step 5: Solve for x
    x = 501,885,774,909.92/862,018.08
  6. Step 6: Final answer
    x = 582,221.87

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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.