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Finding the Fourth Proportional to 413,110.40, 618,499.20 and 413,110.40

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Solution

The fourth proportional to 413,110.40, 618,499.20 and 413,110.40 is: 618,499.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,110.40 : 618,499.20 = 413,110.40 : x
  2. Step 2: Convert to fraction form
    413,110.40/618,499.20 = 413,110.40/x
  3. Step 3: Cross multiply
    413,110.40x = 618,499.20 × 413,110.40
  4. Step 4: Simplify right side
    413,110.40x = 255,508,451,911.68
  5. Step 5: Solve for x
    x = 255,508,451,911.68/413,110.40
  6. Step 6: Final answer
    x = 618,499.20

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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.