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Finding the Fourth Proportional to 489,882.76, 734,490.06 and 249,405.64

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Solution

The fourth proportional to 489,882.76, 734,490.06 and 249,405.64 is: 373,938.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,882.76 : 734,490.06 = 249,405.64 : x
  2. Step 2: Convert to fraction form
    489,882.76/734,490.06 = 249,405.64/x
  3. Step 3: Cross multiply
    489,882.76x = 734,490.06 × 249,405.64
  4. Step 4: Simplify right side
    489,882.76x = 183,185,963,487.94
  5. Step 5: Solve for x
    x = 183,185,963,487.94/489,882.76
  6. Step 6: Final answer
    x = 373,938.38

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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.