Home / 380,675.08-571,026.60-127,964.20

Finding the Fourth Proportional to 380,675.08, 571,026.60 and 127,964.20

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Solution

The fourth proportional to 380,675.08, 571,026.60 and 127,964.20 is: 191,951.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,675.08 : 571,026.60 = 127,964.20 : x
  2. Step 2: Convert to fraction form
    380,675.08/571,026.60 = 127,964.20/x
  3. Step 3: Cross multiply
    380,675.08x = 571,026.60 × 127,964.20
  4. Step 4: Simplify right side
    380,675.08x = 73,070,962,047.72
  5. Step 5: Solve for x
    x = 73,070,962,047.72/380,675.08
  6. Step 6: Final answer
    x = 191,951.00

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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.