Home / 1,057,180.33-1,458,697.80-643,439.98

Finding the Fourth Proportional to 1,057,180.33, 1,458,697.80 and 643,439.98

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Solution

The fourth proportional to 1,057,180.33, 1,458,697.80 and 643,439.98 is: 887,818.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,057,180.33 : 1,458,697.80 = 643,439.98 : x
  2. Step 2: Convert to fraction form
    1,057,180.33/1,458,697.80 = 643,439.98/x
  3. Step 3: Cross multiply
    1,057,180.33x = 1,458,697.80 × 643,439.98
  4. Step 4: Simplify right side
    1,057,180.33x = 938,584,483,258.04
  5. Step 5: Solve for x
    x = 938,584,483,258.04/1,057,180.33
  6. Step 6: Final answer
    x = 887,818.72

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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.