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Finding the Fourth Proportional to 500,283.77, 690,384.75 and 273,929.27

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Solution

The fourth proportional to 500,283.77, 690,384.75 and 273,929.27 is: 378,018.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,283.77 : 690,384.75 = 273,929.27 : x
  2. Step 2: Convert to fraction form
    500,283.77/690,384.75 = 273,929.27/x
  3. Step 3: Cross multiply
    500,283.77x = 690,384.75 × 273,929.27
  4. Step 4: Simplify right side
    500,283.77x = 189,116,590,586.63
  5. Step 5: Solve for x
    x = 189,116,590,586.63/500,283.77
  6. Step 6: Final answer
    x = 378,018.64

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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.