Home / 855,116.35-1,282,707.33-381,805.81

Finding the Fourth Proportional to 855,116.35, 1,282,707.33 and 381,805.81

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Solution

The fourth proportional to 855,116.35, 1,282,707.33 and 381,805.81 is: 572,723.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,116.35 : 1,282,707.33 = 381,805.81 : x
  2. Step 2: Convert to fraction form
    855,116.35/1,282,707.33 = 381,805.81/x
  3. Step 3: Cross multiply
    855,116.35x = 1,282,707.33 × 381,805.81
  4. Step 4: Simplify right side
    855,116.35x = 489,745,113,681.49
  5. Step 5: Solve for x
    x = 489,745,113,681.49/855,116.35
  6. Step 6: Final answer
    x = 572,723.36

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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.