Home / 520,931.79-781,427.97-201,085.29

Finding the Fourth Proportional to 520,931.79, 781,427.97 and 201,085.29

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Solution

The fourth proportional to 520,931.79, 781,427.97 and 201,085.29 is: 301,639.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,931.79 : 781,427.97 = 201,085.29 : x
  2. Step 2: Convert to fraction form
    520,931.79/781,427.97 = 201,085.29/x
  3. Step 3: Cross multiply
    520,931.79x = 781,427.97 × 201,085.29
  4. Step 4: Simplify right side
    520,931.79x = 157,133,669,961.56
  5. Step 5: Solve for x
    x = 157,133,669,961.56/520,931.79
  6. Step 6: Final answer
    x = 301,639.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.