Home / 712,085.35-1,067,744.89-285,407.05

Finding the Fourth Proportional to 712,085.35, 1,067,744.89 and 285,407.05

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Solution

The fourth proportional to 712,085.35, 1,067,744.89 and 285,407.05 is: 427,957.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,085.35 : 1,067,744.89 = 285,407.05 : x
  2. Step 2: Convert to fraction form
    712,085.35/1,067,744.89 = 285,407.05/x
  3. Step 3: Cross multiply
    712,085.35x = 1,067,744.89 × 285,407.05
  4. Step 4: Simplify right side
    712,085.35x = 304,741,919,207.48
  5. Step 5: Solve for x
    x = 304,741,919,207.48/712,085.35
  6. Step 6: Final answer
    x = 427,957.01

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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.