Home / 821,537.60-1,232,402.40-260,628.80

Finding the Fourth Proportional to 821,537.60, 1,232,402.40 and 260,628.80

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Solution

The fourth proportional to 821,537.60, 1,232,402.40 and 260,628.80 is: 390,973.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,537.60 : 1,232,402.40 = 260,628.80 : x
  2. Step 2: Convert to fraction form
    821,537.60/1,232,402.40 = 260,628.80/x
  3. Step 3: Cross multiply
    821,537.60x = 1,232,402.40 × 260,628.80
  4. Step 4: Simplify right side
    821,537.60x = 321,199,558,629.12
  5. Step 5: Solve for x
    x = 321,199,558,629.12/821,537.60
  6. Step 6: Final answer
    x = 390,973.66

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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.