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Finding the Fourth Proportional to 547,987.71, 820,653.03 and 379,033.86

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Solution

The fourth proportional to 547,987.71, 820,653.03 and 379,033.86 is: 567,631.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,987.71 : 820,653.03 = 379,033.86 : x
  2. Step 2: Convert to fraction form
    547,987.71/820,653.03 = 379,033.86/x
  3. Step 3: Cross multiply
    547,987.71x = 820,653.03 × 379,033.86
  4. Step 4: Simplify right side
    547,987.71x = 311,055,285,681.60
  5. Step 5: Solve for x
    x = 311,055,285,681.60/547,987.71
  6. Step 6: Final answer
    x = 567,631.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.