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Finding the Fourth Proportional to 869,169.60, 1,302,004.80 and 603,230.40

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Solution

The fourth proportional to 869,169.60, 1,302,004.80 and 603,230.40 is: 903,631.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,169.60 : 1,302,004.80 = 603,230.40 : x
  2. Step 2: Convert to fraction form
    869,169.60/1,302,004.80 = 603,230.40/x
  3. Step 3: Cross multiply
    869,169.60x = 1,302,004.80 × 603,230.40
  4. Step 4: Simplify right side
    869,169.60x = 785,408,876,305.92
  5. Step 5: Solve for x
    x = 785,408,876,305.92/869,169.60
  6. Step 6: Final answer
    x = 903,631.32

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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.