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Finding the Fourth Proportional to 404,430.30, 606,645.45 and 328,322.70

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Solution

The fourth proportional to 404,430.30, 606,645.45 and 328,322.70 is: 492,484.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,430.30 : 606,645.45 = 328,322.70 : x
  2. Step 2: Convert to fraction form
    404,430.30/606,645.45 = 328,322.70/x
  3. Step 3: Cross multiply
    404,430.30x = 606,645.45 × 328,322.70
  4. Step 4: Simplify right side
    404,430.30x = 199,175,472,086.72
  5. Step 5: Solve for x
    x = 199,175,472,086.72/404,430.30
  6. Step 6: Final answer
    x = 492,484.05

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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.