Home / 885,667.80-1,328,501.70-324,629.40

Finding the Fourth Proportional to 885,667.80, 1,328,501.70 and 324,629.40

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Solution

The fourth proportional to 885,667.80, 1,328,501.70 and 324,629.40 is: 486,944.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,667.80 : 1,328,501.70 = 324,629.40 : x
  2. Step 2: Convert to fraction form
    885,667.80/1,328,501.70 = 324,629.40/x
  3. Step 3: Cross multiply
    885,667.80x = 1,328,501.70 × 324,629.40
  4. Step 4: Simplify right side
    885,667.80x = 431,270,709,769.98
  5. Step 5: Solve for x
    x = 431,270,709,769.98/885,667.80
  6. Step 6: Final answer
    x = 486,944.10

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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.