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Finding the Fourth Proportional to 542,172.01, 748,188.23 and 300,454.09

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Solution

The fourth proportional to 542,172.01, 748,188.23 and 300,454.09 is: 414,621.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,172.01 : 748,188.23 = 300,454.09 : x
  2. Step 2: Convert to fraction form
    542,172.01/748,188.23 = 300,454.09/x
  3. Step 3: Cross multiply
    542,172.01x = 748,188.23 × 300,454.09
  4. Step 4: Simplify right side
    542,172.01x = 224,796,210,803.56
  5. Step 5: Solve for x
    x = 224,796,210,803.56/542,172.01
  6. Step 6: Final answer
    x = 414,621.58

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1.5x scale

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.