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Finding the Fourth Proportional to 404,402.60, 606,603.90 and 286,304.60

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Solution

The fourth proportional to 404,402.60, 606,603.90 and 286,304.60 is: 429,456.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,402.60 : 606,603.90 = 286,304.60 : x
  2. Step 2: Convert to fraction form
    404,402.60/606,603.90 = 286,304.60/x
  3. Step 3: Cross multiply
    404,402.60x = 606,603.90 × 286,304.60
  4. Step 4: Simplify right side
    404,402.60x = 173,673,486,947.94
  5. Step 5: Solve for x
    x = 173,673,486,947.94/404,402.60
  6. Step 6: Final answer
    x = 429,456.90

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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.