Home / 857,779.60-1,286,280.60-325,123.60

Finding the Fourth Proportional to 857,779.60, 1,286,280.60 and 325,123.60

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Solution

The fourth proportional to 857,779.60, 1,286,280.60 and 325,123.60 is: 487,538.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,779.60 : 1,286,280.60 = 325,123.60 : x
  2. Step 2: Convert to fraction form
    857,779.60/1,286,280.60 = 325,123.60/x
  3. Step 3: Cross multiply
    857,779.60x = 1,286,280.60 × 325,123.60
  4. Step 4: Simplify right side
    857,779.60x = 418,200,179,282.16
  5. Step 5: Solve for x
    x = 418,200,179,282.16/857,779.60
  6. Step 6: Final answer
    x = 487,538.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.