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Finding the Fourth Proportional to 542,626.55, 748,762.74 and 300,848.03

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Solution

The fourth proportional to 542,626.55, 748,762.74 and 300,848.03 is: 415,135.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,626.55 : 748,762.74 = 300,848.03 : x
  2. Step 2: Convert to fraction form
    542,626.55/748,762.74 = 300,848.03/x
  3. Step 3: Cross multiply
    542,626.55x = 748,762.74 × 300,848.03
  4. Step 4: Simplify right side
    542,626.55x = 225,263,795,266.40
  5. Step 5: Solve for x
    x = 225,263,795,266.40/542,626.55
  6. Step 6: Final answer
    x = 415,135.96

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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.