Home / 948,139.54-1,308,788.35-621,473.58

Finding the Fourth Proportional to 948,139.54, 1,308,788.35 and 621,473.58

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Solution

The fourth proportional to 948,139.54, 1,308,788.35 and 621,473.58 is: 857,866.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,139.54 : 1,308,788.35 = 621,473.58 : x
  2. Step 2: Convert to fraction form
    948,139.54/1,308,788.35 = 621,473.58/x
  3. Step 3: Cross multiply
    948,139.54x = 1,308,788.35 × 621,473.58
  4. Step 4: Simplify right side
    948,139.54x = 813,377,379,783.11
  5. Step 5: Solve for x
    x = 813,377,379,783.11/948,139.54
  6. Step 6: Final answer
    x = 857,866.75

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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.