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Finding the Fourth Proportional to 485,512.63, 670,007.55 and 270,648.07

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Solution

The fourth proportional to 485,512.63, 670,007.55 and 270,648.07 is: 373,494.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,512.63 : 670,007.55 = 270,648.07 : x
  2. Step 2: Convert to fraction form
    485,512.63/670,007.55 = 270,648.07/x
  3. Step 3: Cross multiply
    485,512.63x = 670,007.55 × 270,648.07
  4. Step 4: Simplify right side
    485,512.63x = 181,336,250,292.93
  5. Step 5: Solve for x
    x = 181,336,250,292.93/485,512.63
  6. Step 6: Final answer
    x = 373,494.40

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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.