Home / 540,918.50-811,431.81-185,885.78

Finding the Fourth Proportional to 540,918.50, 811,431.81 and 185,885.78

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Solution

The fourth proportional to 540,918.50, 811,431.81 and 185,885.78 is: 278,847.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,918.50 : 811,431.81 = 185,885.78 : x
  2. Step 2: Convert to fraction form
    540,918.50/811,431.81 = 185,885.78/x
  3. Step 3: Cross multiply
    540,918.50x = 811,431.81 × 185,885.78
  4. Step 4: Simplify right side
    540,918.50x = 150,833,630,861.50
  5. Step 5: Solve for x
    x = 150,833,630,861.50/540,918.50
  6. Step 6: Final answer
    x = 278,847.24

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1.5x scale

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.