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Finding the Fourth Proportional to 603,127.76, 903,313.72 and 287,806.12

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Solution

The fourth proportional to 603,127.76, 903,313.72 and 287,806.12 is: 431,051.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,127.76 : 903,313.72 = 287,806.12 : x
  2. Step 2: Convert to fraction form
    603,127.76/903,313.72 = 287,806.12/x
  3. Step 3: Cross multiply
    603,127.76x = 903,313.72 × 287,806.12
  4. Step 4: Simplify right side
    603,127.76x = 259,979,216,895.97
  5. Step 5: Solve for x
    x = 259,979,216,895.97/603,127.76
  6. Step 6: Final answer
    x = 431,051.65

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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.