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Finding the Fourth Proportional to 978,250.02, 1,350,056.76 and 542,735.85

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Solution

The fourth proportional to 978,250.02, 1,350,056.76 and 542,735.85 is: 749,015.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,250.02 : 1,350,056.76 = 542,735.85 : x
  2. Step 2: Convert to fraction form
    978,250.02/1,350,056.76 = 542,735.85/x
  3. Step 3: Cross multiply
    978,250.02x = 1,350,056.76 × 542,735.85
  4. Step 4: Simplify right side
    978,250.02x = 732,724,203,186.85
  5. Step 5: Solve for x
    x = 732,724,203,186.85/978,250.02
  6. Step 6: Final answer
    x = 749,015.27

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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.