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Finding the Fourth Proportional to 547,878.40, 755,851.12 and 364,205.78

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Solution

The fourth proportional to 547,878.40, 755,851.12 and 364,205.78 is: 502,457.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,878.40 : 755,851.12 = 364,205.78 : x
  2. Step 2: Convert to fraction form
    547,878.40/755,851.12 = 364,205.78/x
  3. Step 3: Cross multiply
    547,878.40x = 755,851.12 × 364,205.78
  4. Step 4: Simplify right side
    547,878.40x = 275,285,347,702.59
  5. Step 5: Solve for x
    x = 275,285,347,702.59/547,878.40
  6. Step 6: Final answer
    x = 502,457.02

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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.