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Finding the Fourth Proportional to 537,995.04, 742,435.40 and 308,561.20

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Solution

The fourth proportional to 537,995.04, 742,435.40 and 308,561.20 is: 425,815.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,995.04 : 742,435.40 = 308,561.20 : x
  2. Step 2: Convert to fraction form
    537,995.04/742,435.40 = 308,561.20/x
  3. Step 3: Cross multiply
    537,995.04x = 742,435.40 × 308,561.20
  4. Step 4: Simplify right side
    537,995.04x = 229,086,757,946.48
  5. Step 5: Solve for x
    x = 229,086,757,946.48/537,995.04
  6. Step 6: Final answer
    x = 425,815.74

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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.