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Finding the Fourth Proportional to 485,798.54, 670,403.18 and 270,952.52

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Solution

The fourth proportional to 485,798.54, 670,403.18 and 270,952.52 is: 373,915.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,798.54 : 670,403.18 = 270,952.52 : x
  2. Step 2: Convert to fraction form
    485,798.54/670,403.18 = 270,952.52/x
  3. Step 3: Cross multiply
    485,798.54x = 670,403.18 × 270,952.52
  4. Step 4: Simplify right side
    485,798.54x = 181,647,429,682.25
  5. Step 5: Solve for x
    x = 181,647,429,682.25/485,798.54
  6. Step 6: Final answer
    x = 373,915.14

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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.