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Finding the Fourth Proportional to 618,220.70, 926,812.65 and 322,732.70

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Solution

The fourth proportional to 618,220.70, 926,812.65 and 322,732.70 is: 483,828.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,220.70 : 926,812.65 = 322,732.70 : x
  2. Step 2: Convert to fraction form
    618,220.70/926,812.65 = 322,732.70/x
  3. Step 3: Cross multiply
    618,220.70x = 926,812.65 × 322,732.70
  4. Step 4: Simplify right side
    618,220.70x = 299,112,748,928.66
  5. Step 5: Solve for x
    x = 299,112,748,928.66/618,220.70
  6. Step 6: Final answer
    x = 483,828.43

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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.