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Finding the Fourth Proportional to 690,062.70, 952,314.39 and 384,151.62

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Solution

The fourth proportional to 690,062.70, 952,314.39 and 384,151.62 is: 530,144.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,062.70 : 952,314.39 = 384,151.62 : x
  2. Step 2: Convert to fraction form
    690,062.70/952,314.39 = 384,151.62/x
  3. Step 3: Cross multiply
    690,062.70x = 952,314.39 × 384,151.62
  4. Step 4: Simplify right side
    690,062.70x = 365,833,115,667.81
  5. Step 5: Solve for x
    x = 365,833,115,667.81/690,062.70
  6. Step 6: Final answer
    x = 530,144.75

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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.