Home / 765,450.88-1,148,434.60-338,928.48

Finding the Fourth Proportional to 765,450.88, 1,148,434.60 and 338,928.48

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Solution

The fourth proportional to 765,450.88, 1,148,434.60 and 338,928.48 is: 508,507.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,450.88 : 1,148,434.60 = 338,928.48 : x
  2. Step 2: Convert to fraction form
    765,450.88/1,148,434.60 = 338,928.48/x
  3. Step 3: Cross multiply
    765,450.88x = 1,148,434.60 × 338,928.48
  4. Step 4: Simplify right side
    765,450.88x = 389,237,193,357.41
  5. Step 5: Solve for x
    x = 389,237,193,357.41/765,450.88
  6. Step 6: Final answer
    x = 508,507.08

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1.5x scale

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.