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Finding the Fourth Proportional to 603,276.84, 903,537.18 and 287,955.72

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Solution

The fourth proportional to 603,276.84, 903,537.18 and 287,955.72 is: 431,275.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,276.84 : 903,537.18 = 287,955.72 : x
  2. Step 2: Convert to fraction form
    603,276.84/903,537.18 = 287,955.72/x
  3. Step 3: Cross multiply
    603,276.84x = 903,537.18 × 287,955.72
  4. Step 4: Simplify right side
    603,276.84x = 260,178,699,213.67
  5. Step 5: Solve for x
    x = 260,178,699,213.67/603,276.84
  6. Step 6: Final answer
    x = 431,275.80

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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.