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Finding the Fourth Proportional to 603,590.40, 904,003.20 and 307,756.80

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Solution

The fourth proportional to 603,590.40, 904,003.20 and 307,756.80 is: 460,930.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,590.40 : 904,003.20 = 307,756.80 : x
  2. Step 2: Convert to fraction form
    603,590.40/904,003.20 = 307,756.80/x
  3. Step 3: Cross multiply
    603,590.40x = 904,003.20 × 307,756.80
  4. Step 4: Simplify right side
    603,590.40x = 278,213,132,021.76
  5. Step 5: Solve for x
    x = 278,213,132,021.76/603,590.40
  6. Step 6: Final answer
    x = 460,930.35

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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.