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Finding the Fourth Proportional to 550,311.26, 759,107.76 and 346,038.80

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Solution

The fourth proportional to 550,311.26, 759,107.76 and 346,038.80 is: 477,331.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,311.26 : 759,107.76 = 346,038.80 : x
  2. Step 2: Convert to fraction form
    550,311.26/759,107.76 = 346,038.80/x
  3. Step 3: Cross multiply
    550,311.26x = 759,107.76 × 346,038.80
  4. Step 4: Simplify right side
    550,311.26x = 262,680,738,341.09
  5. Step 5: Solve for x
    x = 262,680,738,341.09/550,311.26
  6. Step 6: Final answer
    x = 477,331.21

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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.