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Finding the Fourth Proportional to 545,710.63, 819,124.52 and 450,637.89

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Solution

The fourth proportional to 545,710.63, 819,124.52 and 450,637.89 is: 676,418.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,710.63 : 819,124.52 = 450,637.89 : x
  2. Step 2: Convert to fraction form
    545,710.63/819,124.52 = 450,637.89/x
  3. Step 3: Cross multiply
    545,710.63x = 819,124.52 × 450,637.89
  4. Step 4: Simplify right side
    545,710.63x = 369,128,541,244.44
  5. Step 5: Solve for x
    x = 369,128,541,244.44/545,710.63
  6. Step 6: Final answer
    x = 676,418.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.