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Finding the Fourth Proportional to 610,155.41, 842,045.37 and 351,936.32

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Solution

The fourth proportional to 610,155.41, 842,045.37 and 351,936.32 is: 485,689.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,155.41 : 842,045.37 = 351,936.32 : x
  2. Step 2: Convert to fraction form
    610,155.41/842,045.37 = 351,936.32/x
  3. Step 3: Cross multiply
    610,155.41x = 842,045.37 × 351,936.32
  4. Step 4: Simplify right side
    610,155.41x = 296,346,348,790.84
  5. Step 5: Solve for x
    x = 296,346,348,790.84/610,155.41
  6. Step 6: Final answer
    x = 485,689.95

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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.