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Finding the Fourth Proportional to 545,684.47, 753,015.36 and 300,661.63

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Solution

The fourth proportional to 545,684.47, 753,015.36 and 300,661.63 is: 414,896.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,684.47 : 753,015.36 = 300,661.63 : x
  2. Step 2: Convert to fraction form
    545,684.47/753,015.36 = 300,661.63/x
  3. Step 3: Cross multiply
    545,684.47x = 753,015.36 × 300,661.63
  4. Step 4: Simplify right side
    545,684.47x = 226,402,825,552.64
  5. Step 5: Solve for x
    x = 226,402,825,552.64/545,684.47
  6. Step 6: Final answer
    x = 414,896.96

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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.