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Finding the Fourth Proportional to 404,219.10, 607,640.85 and 286,704.30

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Solution

The fourth proportional to 404,219.10, 607,640.85 and 286,704.30 is: 430,987.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,219.10 : 607,640.85 = 286,704.30 : x
  2. Step 2: Convert to fraction form
    404,219.10/607,640.85 = 286,704.30/x
  3. Step 3: Cross multiply
    404,219.10x = 607,640.85 × 286,704.30
  4. Step 4: Simplify right side
    404,219.10x = 174,213,244,550.66
  5. Step 5: Solve for x
    x = 174,213,244,550.66/404,219.10
  6. Step 6: Final answer
    x = 430,987.17

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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.