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Finding the Fourth Proportional to 457,880.76, 686,709.18 and 357,792.72

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Solution

The fourth proportional to 457,880.76, 686,709.18 and 357,792.72 is: 536,601.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,880.76 : 686,709.18 = 357,792.72 : x
  2. Step 2: Convert to fraction form
    457,880.76/686,709.18 = 357,792.72/x
  3. Step 3: Cross multiply
    457,880.76x = 686,709.18 × 357,792.72
  4. Step 4: Simplify right side
    457,880.76x = 245,699,545,361.17
  5. Step 5: Solve for x
    x = 245,699,545,361.17/457,880.76
  6. Step 6: Final answer
    x = 536,601.59

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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.