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Finding the Fourth Proportional to 571,515.66, 857,787.44 and 305,503.56

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Solution

The fourth proportional to 571,515.66, 857,787.44 and 305,503.56 is: 458,530.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,515.66 : 857,787.44 = 305,503.56 : x
  2. Step 2: Convert to fraction form
    571,515.66/857,787.44 = 305,503.56/x
  3. Step 3: Cross multiply
    571,515.66x = 857,787.44 × 305,503.56
  4. Step 4: Simplify right side
    571,515.66x = 262,057,116,966.45
  5. Step 5: Solve for x
    x = 262,057,116,966.45/571,515.66
  6. Step 6: Final answer
    x = 458,530.07

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1.5x scale

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.