Home / 1,056,876.48-1,458,471.15-643,263.75

Finding the Fourth Proportional to 1,056,876.48, 1,458,471.15 and 643,263.75

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Solution

The fourth proportional to 1,056,876.48, 1,458,471.15 and 643,263.75 is: 887,692.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,056,876.48 : 1,458,471.15 = 643,263.75 : x
  2. Step 2: Convert to fraction form
    1,056,876.48/1,458,471.15 = 643,263.75/x
  3. Step 3: Cross multiply
    1,056,876.48x = 1,458,471.15 × 643,263.75
  4. Step 4: Simplify right side
    1,056,876.48x = 938,181,621,215.81
  5. Step 5: Solve for x
    x = 938,181,621,215.81/1,056,876.48
  6. Step 6: Final answer
    x = 887,692.78

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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.