Home / 948,140.46-1,308,789.65-621,474.53

Finding the Fourth Proportional to 948,140.46, 1,308,789.65 and 621,474.53

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Solution

The fourth proportional to 948,140.46, 1,308,789.65 and 621,474.53 is: 857,868.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,140.46 : 1,308,789.65 = 621,474.53 : x
  2. Step 2: Convert to fraction form
    948,140.46/1,308,789.65 = 621,474.53/x
  3. Step 3: Cross multiply
    948,140.46x = 1,308,789.65 × 621,474.53
  4. Step 4: Simplify right side
    948,140.46x = 813,379,422,951.29
  5. Step 5: Solve for x
    x = 813,379,422,951.29/948,140.46
  6. Step 6: Final answer
    x = 857,868.07

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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.