Home / 871,289.60-1,306,243.20-477,305.60

Finding the Fourth Proportional to 871,289.60, 1,306,243.20 and 477,305.60

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Solution

The fourth proportional to 871,289.60, 1,306,243.20 and 477,305.60 is: 715,579.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,289.60 : 1,306,243.20 = 477,305.60 : x
  2. Step 2: Convert to fraction form
    871,289.60/1,306,243.20 = 477,305.60/x
  3. Step 3: Cross multiply
    871,289.60x = 1,306,243.20 × 477,305.60
  4. Step 4: Simplify right side
    871,289.60x = 623,477,194,321.92
  5. Step 5: Solve for x
    x = 623,477,194,321.92/871,289.60
  6. Step 6: Final answer
    x = 715,579.75

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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.