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Finding the Fourth Proportional to 902,628, 1,245,626.64 and 500,245.92

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Solution

The fourth proportional to 902,628, 1,245,626.64 and 500,245.92 is: 690,339.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,628 : 1,245,626.64 = 500,245.92 : x
  2. Step 2: Convert to fraction form
    902,628/1,245,626.64 = 500,245.92/x
  3. Step 3: Cross multiply
    902,628x = 1,245,626.64 × 500,245.92
  4. Step 4: Simplify right side
    902,628x = 623,119,644,503.31
  5. Step 5: Solve for x
    x = 623,119,644,503.31/902,628
  6. Step 6: Final answer
    x = 690,339.37

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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.