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Finding the Fourth Proportional to 603,801.30, 905,811.30 and 303,526.20

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Solution

The fourth proportional to 603,801.30, 905,811.30 and 303,526.20 is: 455,344.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,801.30 : 905,811.30 = 303,526.20 : x
  2. Step 2: Convert to fraction form
    603,801.30/905,811.30 = 303,526.20/x
  3. Step 3: Cross multiply
    603,801.30x = 905,811.30 × 303,526.20
  4. Step 4: Simplify right side
    603,801.30x = 274,937,461,806.06
  5. Step 5: Solve for x
    x = 274,937,461,806.06/603,801.30
  6. Step 6: Final answer
    x = 455,344.27

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Double scale
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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.