Home / 747,354.48-1,031,371.12-407,844.64

Finding the Fourth Proportional to 747,354.48, 1,031,371.12 and 407,844.64

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Solution

The fourth proportional to 747,354.48, 1,031,371.12 and 407,844.64 is: 562,837.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,354.48 : 1,031,371.12 = 407,844.64 : x
  2. Step 2: Convert to fraction form
    747,354.48/1,031,371.12 = 407,844.64/x
  3. Step 3: Cross multiply
    747,354.48x = 1,031,371.12 × 407,844.64
  4. Step 4: Simplify right side
    747,354.48x = 420,639,183,142.80
  5. Step 5: Solve for x
    x = 420,639,183,142.80/747,354.48
  6. Step 6: Final answer
    x = 562,837.57

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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.