Home / 407,985.08-611,977.48-127,502.32

Finding the Fourth Proportional to 407,985.08, 611,977.48 and 127,502.32

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Solution

The fourth proportional to 407,985.08, 611,977.48 and 127,502.32 is: 191,253.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,985.08 : 611,977.48 = 127,502.32 : x
  2. Step 2: Convert to fraction form
    407,985.08/611,977.48 = 127,502.32/x
  3. Step 3: Cross multiply
    407,985.08x = 611,977.48 × 127,502.32
  4. Step 4: Simplify right side
    407,985.08x = 78,028,548,487.75
  5. Step 5: Solve for x
    x = 78,028,548,487.75/407,985.08
  6. Step 6: Final answer
    x = 191,253.44

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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.