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Finding the Fourth Proportional to 479,038.52, 661,050.92 and 274,945.82

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Solution

The fourth proportional to 479,038.52, 661,050.92 and 274,945.82 is: 379,412.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,038.52 : 661,050.92 = 274,945.82 : x
  2. Step 2: Convert to fraction form
    479,038.52/661,050.92 = 274,945.82/x
  3. Step 3: Cross multiply
    479,038.52x = 661,050.92 × 274,945.82
  4. Step 4: Simplify right side
    479,038.52x = 181,753,184,643.26
  5. Step 5: Solve for x
    x = 181,753,184,643.26/479,038.52
  6. Step 6: Final answer
    x = 379,412.46

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1.5x scale

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.