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Finding the Fourth Proportional to 500,283.76, 690,384.76 and 273,929.28

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Solution

The fourth proportional to 500,283.76, 690,384.76 and 273,929.28 is: 378,018.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,283.76 : 690,384.76 = 273,929.28 : x
  2. Step 2: Convert to fraction form
    500,283.76/690,384.76 = 273,929.28/x
  3. Step 3: Cross multiply
    500,283.76x = 690,384.76 × 273,929.28
  4. Step 4: Simplify right side
    500,283.76x = 189,116,600,229.77
  5. Step 5: Solve for x
    x = 189,116,600,229.77/500,283.76
  6. Step 6: Final answer
    x = 378,018.67

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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.