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Finding the Fourth Proportional to 1,323,339.02, 1,984,820.86 and 424,664.47

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Solution

The fourth proportional to 1,323,339.02, 1,984,820.86 and 424,664.47 is: 636,936.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323,339.02 : 1,984,820.86 = 424,664.47 : x
  2. Step 2: Convert to fraction form
    1,323,339.02/1,984,820.86 = 424,664.47/x
  3. Step 3: Cross multiply
    1,323,339.02x = 1,984,820.86 × 424,664.47
  4. Step 4: Simplify right side
    1,323,339.02x = 842,882,901,568.70
  5. Step 5: Solve for x
    x = 842,882,901,568.70/1,323,339.02
  6. Step 6: Final answer
    x = 636,936.48

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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.