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Finding the Fourth Proportional to 537,987.88, 742,389.06 and 323,137

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Solution

The fourth proportional to 537,987.88, 742,389.06 and 323,137 is: 445,908.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,987.88 : 742,389.06 = 323,137 : x
  2. Step 2: Convert to fraction form
    537,987.88/742,389.06 = 323,137/x
  3. Step 3: Cross multiply
    537,987.88x = 742,389.06 × 323,137
  4. Step 4: Simplify right side
    537,987.88x = 239,893,373,681.22
  5. Step 5: Solve for x
    x = 239,893,373,681.22/537,987.88
  6. Step 6: Final answer
    x = 445,908.51

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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.