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Finding the Fourth Proportional to 550,420.28, 759,257.39 and 346,147.19

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Solution

The fourth proportional to 550,420.28, 759,257.39 and 346,147.19 is: 477,480.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,420.28 : 759,257.39 = 346,147.19 : x
  2. Step 2: Convert to fraction form
    550,420.28/759,257.39 = 346,147.19/x
  3. Step 3: Cross multiply
    550,420.28x = 759,257.39 × 346,147.19
  4. Step 4: Simplify right side
    550,420.28x = 262,814,809,104.32
  5. Step 5: Solve for x
    x = 262,814,809,104.32/550,420.28
  6. Step 6: Final answer
    x = 477,480.25

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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.