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Finding the Fourth Proportional to 369,629.30, 518,880.70 and 369,629.30

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Solution

The fourth proportional to 369,629.30, 518,880.70 and 369,629.30 is: 518,880.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,629.30 : 518,880.70 = 369,629.30 : x
  2. Step 2: Convert to fraction form
    369,629.30/518,880.70 = 369,629.30/x
  3. Step 3: Cross multiply
    369,629.30x = 518,880.70 × 369,629.30
  4. Step 4: Simplify right side
    369,629.30x = 191,793,509,924.51
  5. Step 5: Solve for x
    x = 191,793,509,924.51/369,629.30
  6. Step 6: Final answer
    x = 518,880.70

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.