Home / 404,320.20-606,626.10-389,740.20

Finding the Fourth Proportional to 404,320.20, 606,626.10 and 389,740.20

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Solution

The fourth proportional to 404,320.20, 606,626.10 and 389,740.20 is: 584,750.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,320.20 : 606,626.10 = 389,740.20 : x
  2. Step 2: Convert to fraction form
    404,320.20/606,626.10 = 389,740.20/x
  3. Step 3: Cross multiply
    404,320.20x = 606,626.10 × 389,740.20
  4. Step 4: Simplify right side
    404,320.20x = 236,426,577,539.22
  5. Step 5: Solve for x
    x = 236,426,577,539.22/404,320.20
  6. Step 6: Final answer
    x = 584,750.84

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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.