Home / 810,538.60-1,215,692.70-249,629.80

Finding the Fourth Proportional to 810,538.60, 1,215,692.70 and 249,629.80

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Solution

The fourth proportional to 810,538.60, 1,215,692.70 and 249,629.80 is: 374,409.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,538.60 : 1,215,692.70 = 249,629.80 : x
  2. Step 2: Convert to fraction form
    810,538.60/1,215,692.70 = 249,629.80/x
  3. Step 3: Cross multiply
    810,538.60x = 1,215,692.70 × 249,629.80
  4. Step 4: Simplify right side
    810,538.60x = 303,473,125,562.46
  5. Step 5: Solve for x
    x = 303,473,125,562.46/810,538.60
  6. Step 6: Final answer
    x = 374,409.22

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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.