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Finding the Fourth Proportional to 603,591.40, 904,004.70 and 307,757.80

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Solution

The fourth proportional to 603,591.40, 904,004.70 and 307,757.80 is: 460,931.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,591.40 : 904,004.70 = 307,757.80 : x
  2. Step 2: Convert to fraction form
    603,591.40/904,004.70 = 307,757.80/x
  3. Step 3: Cross multiply
    603,591.40x = 904,004.70 × 307,757.80
  4. Step 4: Simplify right side
    603,591.40x = 278,214,497,661.66
  5. Step 5: Solve for x
    x = 278,214,497,661.66/603,591.40
  6. Step 6: Final answer
    x = 460,931.85

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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.