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Finding the Fourth Proportional to 690,300.74, 952,605.94 and 380,197.37

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Solution

The fourth proportional to 690,300.74, 952,605.94 and 380,197.37 is: 524,667.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,300.74 : 952,605.94 = 380,197.37 : x
  2. Step 2: Convert to fraction form
    690,300.74/952,605.94 = 380,197.37/x
  3. Step 3: Cross multiply
    690,300.74x = 952,605.94 × 380,197.37
  4. Step 4: Simplify right side
    690,300.74x = 362,178,270,893.13
  5. Step 5: Solve for x
    x = 362,178,270,893.13/690,300.74
  6. Step 6: Final answer
    x = 524,667.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.