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Finding the Fourth Proportional to 485,526.28, 670,023.50 and 270,668.12

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Solution

The fourth proportional to 485,526.28, 670,023.50 and 270,668.12 is: 373,520.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,526.28 : 670,023.50 = 270,668.12 : x
  2. Step 2: Convert to fraction form
    485,526.28/670,023.50 = 270,668.12/x
  3. Step 3: Cross multiply
    485,526.28x = 670,023.50 × 270,668.12
  4. Step 4: Simplify right side
    485,526.28x = 181,354,001,100.82
  5. Step 5: Solve for x
    x = 181,354,001,100.82/485,526.28
  6. Step 6: Final answer
    x = 373,520.46

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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.