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Finding the Fourth Proportional to 840,358.02, 1,260,855.52 and 503,640.32

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Solution

The fourth proportional to 840,358.02, 1,260,855.52 and 503,640.32 is: 755,651.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,358.02 : 1,260,855.52 = 503,640.32 : x
  2. Step 2: Convert to fraction form
    840,358.02/1,260,855.52 = 503,640.32/x
  3. Step 3: Cross multiply
    840,358.02x = 1,260,855.52 × 503,640.32
  4. Step 4: Simplify right side
    840,358.02x = 635,017,670,003.19
  5. Step 5: Solve for x
    x = 635,017,670,003.19/840,358.02
  6. Step 6: Final answer
    x = 755,651.34

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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.