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Finding the Fourth Proportional to 485,799.54, 670,404.56 and 270,953.52

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Solution

The fourth proportional to 485,799.54, 670,404.56 and 270,953.52 is: 373,916.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,799.54 : 670,404.56 = 270,953.52 : x
  2. Step 2: Convert to fraction form
    485,799.54/670,404.56 = 270,953.52/x
  3. Step 3: Cross multiply
    485,799.54x = 670,404.56 × 270,953.52
  4. Step 4: Simplify right side
    485,799.54x = 181,648,474,001.28
  5. Step 5: Solve for x
    x = 181,648,474,001.28/485,799.54
  6. Step 6: Final answer
    x = 373,916.52

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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.