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Finding the Fourth Proportional to 545,505.99, 752,786.51 and 300,497.60

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Solution

The fourth proportional to 545,505.99, 752,786.51 and 300,497.60 is: 414,680.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,505.99 : 752,786.51 = 300,497.60 : x
  2. Step 2: Convert to fraction form
    545,505.99/752,786.51 = 300,497.60/x
  3. Step 3: Cross multiply
    545,505.99x = 752,786.51 × 300,497.60
  4. Step 4: Simplify right side
    545,505.99x = 226,210,534,300.96
  5. Step 5: Solve for x
    x = 226,210,534,300.96/545,505.99
  6. Step 6: Final answer
    x = 414,680.20

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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.