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Finding the Fourth Proportional to 603,943.50, 906,210.48 and 427,583.82

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Solution

The fourth proportional to 603,943.50, 906,210.48 and 427,583.82 is: 641,584.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,943.50 : 906,210.48 = 427,583.82 : x
  2. Step 2: Convert to fraction form
    603,943.50/906,210.48 = 427,583.82/x
  3. Step 3: Cross multiply
    603,943.50x = 906,210.48 × 427,583.82
  4. Step 4: Simplify right side
    603,943.50x = 387,480,938,762.43
  5. Step 5: Solve for x
    x = 387,480,938,762.43/603,943.50
  6. Step 6: Final answer
    x = 641,584.75

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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.