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Finding the Fourth Proportional to 542,038.59, 748,019.21 and 300,325.01

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Solution

The fourth proportional to 542,038.59, 748,019.21 and 300,325.01 is: 414,451.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,038.59 : 748,019.21 = 300,325.01 : x
  2. Step 2: Convert to fraction form
    542,038.59/748,019.21 = 300,325.01/x
  3. Step 3: Cross multiply
    542,038.59x = 748,019.21 × 300,325.01
  4. Step 4: Simplify right side
    542,038.59x = 224,648,871,481.72
  5. Step 5: Solve for x
    x = 224,648,871,481.72/542,038.59
  6. Step 6: Final answer
    x = 414,451.80

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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.