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Finding the Fourth Proportional to 647,943.63, 894,051.47 and 375,949.17

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Solution

The fourth proportional to 647,943.63, 894,051.47 and 375,949.17 is: 518,745.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,943.63 : 894,051.47 = 375,949.17 : x
  2. Step 2: Convert to fraction form
    647,943.63/894,051.47 = 375,949.17/x
  3. Step 3: Cross multiply
    647,943.63x = 894,051.47 × 375,949.17
  4. Step 4: Simplify right side
    647,943.63x = 336,117,909,023.65
  5. Step 5: Solve for x
    x = 336,117,909,023.65/647,943.63
  6. Step 6: Final answer
    x = 518,745.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.