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Finding the Fourth Proportional to 603,395.64, 905,081.58 and 243,556.92

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Solution

The fourth proportional to 603,395.64, 905,081.58 and 243,556.92 is: 365,330.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,395.64 : 905,081.58 = 243,556.92 : x
  2. Step 2: Convert to fraction form
    603,395.64/905,081.58 = 243,556.92/x
  3. Step 3: Cross multiply
    603,395.64x = 905,081.58 × 243,556.92
  4. Step 4: Simplify right side
    603,395.64x = 220,438,881,973.53
  5. Step 5: Solve for x
    x = 220,438,881,973.53/603,395.64
  6. Step 6: Final answer
    x = 365,330.58

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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.