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Finding the Fourth Proportional to 404,281.60, 606,422.40 and 286,086.40

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Solution

The fourth proportional to 404,281.60, 606,422.40 and 286,086.40 is: 429,129.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,281.60 : 606,422.40 = 286,086.40 : x
  2. Step 2: Convert to fraction form
    404,281.60/606,422.40 = 286,086.40/x
  3. Step 3: Cross multiply
    404,281.60x = 606,422.40 × 286,086.40
  4. Step 4: Simplify right side
    404,281.60x = 173,489,201,295.36
  5. Step 5: Solve for x
    x = 173,489,201,295.36/404,281.60
  6. Step 6: Final answer
    x = 429,129.60

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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.