Home / 494,312.80-740,432.40-272,437.60

Finding the Fourth Proportional to 494,312.80, 740,432.40 and 272,437.60

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Solution

The fourth proportional to 494,312.80, 740,432.40 and 272,437.60 is: 408,084.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,312.80 : 740,432.40 = 272,437.60 : x
  2. Step 2: Convert to fraction form
    494,312.80/740,432.40 = 272,437.60/x
  3. Step 3: Cross multiply
    494,312.80x = 740,432.40 × 272,437.60
  4. Step 4: Simplify right side
    494,312.80x = 201,721,626,018.24
  5. Step 5: Solve for x
    x = 201,721,626,018.24/494,312.80
  6. Step 6: Final answer
    x = 408,084.97

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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.