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Finding the Fourth Proportional to 545,772.78, 753,147.45 and 304,042.86

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Solution

The fourth proportional to 545,772.78, 753,147.45 and 304,042.86 is: 419,568.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,772.78 : 753,147.45 = 304,042.86 : x
  2. Step 2: Convert to fraction form
    545,772.78/753,147.45 = 304,042.86/x
  3. Step 3: Cross multiply
    545,772.78x = 753,147.45 × 304,042.86
  4. Step 4: Simplify right side
    545,772.78x = 228,989,104,699.71
  5. Step 5: Solve for x
    x = 228,989,104,699.71/545,772.78
  6. Step 6: Final answer
    x = 419,568.57

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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.