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Finding the Fourth Proportional to 485,798.79, 670,403.52 and 270,952.77

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Solution

The fourth proportional to 485,798.79, 670,403.52 and 270,952.77 is: 373,915.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,798.79 : 670,403.52 = 270,952.77 : x
  2. Step 2: Convert to fraction form
    485,798.79/670,403.52 = 270,952.77/x
  3. Step 3: Cross multiply
    485,798.79x = 670,403.52 × 270,952.77
  4. Step 4: Simplify right side
    485,798.79x = 181,647,690,761.75
  5. Step 5: Solve for x
    x = 181,647,690,761.75/485,798.79
  6. Step 6: Final answer
    x = 373,915.49

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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.