Home / 500,140.72-690,516.18-446,333.32

Finding the Fourth Proportional to 500,140.72, 690,516.18 and 446,333.32

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Solution

The fourth proportional to 500,140.72, 690,516.18 and 446,333.32 is: 616,227.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,140.72 : 690,516.18 = 446,333.32 : x
  2. Step 2: Convert to fraction form
    500,140.72/690,516.18 = 446,333.32/x
  3. Step 3: Cross multiply
    500,140.72x = 690,516.18 × 446,333.32
  4. Step 4: Simplify right side
    500,140.72x = 308,200,379,133.12
  5. Step 5: Solve for x
    x = 308,200,379,133.12/500,140.72
  6. Step 6: Final answer
    x = 616,227.33

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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.