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Finding the Fourth Proportional to 545,698.83, 752,964.42 and 303,975.39

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Solution

The fourth proportional to 545,698.83, 752,964.42 and 303,975.39 is: 419,430.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,698.83 : 752,964.42 = 303,975.39 : x
  2. Step 2: Convert to fraction form
    545,698.83/752,964.42 = 303,975.39/x
  3. Step 3: Cross multiply
    545,698.83x = 752,964.42 × 303,975.39
  4. Step 4: Simplify right side
    545,698.83x = 228,882,653,225.62
  5. Step 5: Solve for x
    x = 228,882,653,225.62/545,698.83
  6. Step 6: Final answer
    x = 419,430.35

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Double scale
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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.