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Finding the Fourth Proportional to 408,053.90, 612,080.85 and 404,117.30

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Solution

The fourth proportional to 408,053.90, 612,080.85 and 404,117.30 is: 606,175.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,053.90 : 612,080.85 = 404,117.30 : x
  2. Step 2: Convert to fraction form
    408,053.90/612,080.85 = 404,117.30/x
  3. Step 3: Cross multiply
    408,053.90x = 612,080.85 × 404,117.30
  4. Step 4: Simplify right side
    408,053.90x = 247,352,460,483.71
  5. Step 5: Solve for x
    x = 247,352,460,483.71/408,053.90
  6. Step 6: Final answer
    x = 606,175.95

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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.