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Finding the Fourth Proportional to 550,630.80, 760,019.10 and 359,640.12

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Solution

The fourth proportional to 550,630.80, 760,019.10 and 359,640.12 is: 496,400.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,630.80 : 760,019.10 = 359,640.12 : x
  2. Step 2: Convert to fraction form
    550,630.80/760,019.10 = 359,640.12/x
  3. Step 3: Cross multiply
    550,630.80x = 760,019.10 × 359,640.12
  4. Step 4: Simplify right side
    550,630.80x = 273,333,360,326.29
  5. Step 5: Solve for x
    x = 273,333,360,326.29/550,630.80
  6. Step 6: Final answer
    x = 496,400.42

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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.