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Finding the Fourth Proportional to 545,417.25, 752,668.69 and 300,397.35

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Solution

The fourth proportional to 545,417.25, 752,668.69 and 300,397.35 is: 414,544.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,417.25 : 752,668.69 = 300,397.35 : x
  2. Step 2: Convert to fraction form
    545,417.25/752,668.69 = 300,397.35/x
  3. Step 3: Cross multiply
    545,417.25x = 752,668.69 × 300,397.35
  4. Step 4: Simplify right side
    545,417.25x = 226,099,680,895.33
  5. Step 5: Solve for x
    x = 226,099,680,895.33/545,417.25
  6. Step 6: Final answer
    x = 414,544.42

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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.