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Finding the Fourth Proportional to 554,285.40, 765,121.85 and 363,311.10

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Solution

The fourth proportional to 554,285.40, 765,121.85 and 363,311.10 is: 501,505.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,285.40 : 765,121.85 = 363,311.10 : x
  2. Step 2: Convert to fraction form
    554,285.40/765,121.85 = 363,311.10/x
  3. Step 3: Cross multiply
    554,285.40x = 765,121.85 × 363,311.10
  4. Step 4: Simplify right side
    554,285.40x = 277,977,255,315.37
  5. Step 5: Solve for x
    x = 277,977,255,315.37/554,285.40
  6. Step 6: Final answer
    x = 501,505.64

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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.