Home / 947,371.20-1,420,538.40-385,771.20

Finding the Fourth Proportional to 947,371.20, 1,420,538.40 and 385,771.20

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Solution

The fourth proportional to 947,371.20, 1,420,538.40 and 385,771.20 is: 578,445.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,371.20 : 1,420,538.40 = 385,771.20 : x
  2. Step 2: Convert to fraction form
    947,371.20/1,420,538.40 = 385,771.20/x
  3. Step 3: Cross multiply
    947,371.20x = 1,420,538.40 × 385,771.20
  4. Step 4: Simplify right side
    947,371.20x = 548,002,803,214.08
  5. Step 5: Solve for x
    x = 548,002,803,214.08/947,371.20
  6. Step 6: Final answer
    x = 578,445.71

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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.