Home / 1,056,857.73-1,458,445.28-643,245

Finding the Fourth Proportional to 1,056,857.73, 1,458,445.28 and 643,245

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Solution

The fourth proportional to 1,056,857.73, 1,458,445.28 and 643,245 is: 887,666.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,056,857.73 : 1,458,445.28 = 643,245 : x
  2. Step 2: Convert to fraction form
    1,056,857.73/1,458,445.28 = 643,245/x
  3. Step 3: Cross multiply
    1,056,857.73x = 1,458,445.28 × 643,245
  4. Step 4: Simplify right side
    1,056,857.73x = 938,137,630,917.38
  5. Step 5: Solve for x
    x = 938,137,630,917.38/1,056,857.73
  6. Step 6: Final answer
    x = 887,666.91

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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.