Home / 1,211,643.50-1,672,620.55-863,008.37

Finding the Fourth Proportional to 1,211,643.50, 1,672,620.55 and 863,008.37

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Solution

The fourth proportional to 1,211,643.50, 1,672,620.55 and 863,008.37 is: 1,191,345.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,643.50 : 1,672,620.55 = 863,008.37 : x
  2. Step 2: Convert to fraction form
    1,211,643.50/1,672,620.55 = 863,008.37/x
  3. Step 3: Cross multiply
    1,211,643.50x = 1,672,620.55 × 863,008.37
  4. Step 4: Simplify right side
    1,211,643.50x = 1,443,485,523,963.38
  5. Step 5: Solve for x
    x = 1,443,485,523,963.38/1,211,643.50
  6. Step 6: Final answer
    x = 1,191,345.08

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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.