Home / 856,426.34-1,285,436.55-436,016.90

Finding the Fourth Proportional to 856,426.34, 1,285,436.55 and 436,016.90

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Solution

The fourth proportional to 856,426.34, 1,285,436.55 and 436,016.90 is: 654,431.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,426.34 : 1,285,436.55 = 436,016.90 : x
  2. Step 2: Convert to fraction form
    856,426.34/1,285,436.55 = 436,016.90/x
  3. Step 3: Cross multiply
    856,426.34x = 1,285,436.55 × 436,016.90
  4. Step 4: Simplify right side
    856,426.34x = 560,472,053,250.51
  5. Step 5: Solve for x
    x = 560,472,053,250.51/856,426.34
  6. Step 6: Final answer
    x = 654,431.13

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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.