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Finding the Fourth Proportional to 647,795.68, 893,959.62 and 361,334.32

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Solution

The fourth proportional to 647,795.68, 893,959.62 and 361,334.32 is: 498,642.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,795.68 : 893,959.62 = 361,334.32 : x
  2. Step 2: Convert to fraction form
    647,795.68/893,959.62 = 361,334.32/x
  3. Step 3: Cross multiply
    647,795.68x = 893,959.62 × 361,334.32
  4. Step 4: Simplify right side
    647,795.68x = 323,018,291,400.16
  5. Step 5: Solve for x
    x = 323,018,291,400.16/647,795.68
  6. Step 6: Final answer
    x = 498,642.24

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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.