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Finding the Fourth Proportional to 603,000.90, 904,501.35 and 378,614.70

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Solution

The fourth proportional to 603,000.90, 904,501.35 and 378,614.70 is: 567,922.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,000.90 : 904,501.35 = 378,614.70 : x
  2. Step 2: Convert to fraction form
    603,000.90/904,501.35 = 378,614.70/x
  3. Step 3: Cross multiply
    603,000.90x = 904,501.35 × 378,614.70
  4. Step 4: Simplify right side
    603,000.90x = 342,457,507,279.85
  5. Step 5: Solve for x
    x = 342,457,507,279.85/603,000.90
  6. Step 6: Final answer
    x = 567,922.05

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Double scale
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Similar ratio
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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.