Home / 919,510.28-1,377,472.07-518,939.36

Finding the Fourth Proportional to 919,510.28, 1,377,472.07 and 518,939.36

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Solution

The fourth proportional to 919,510.28, 1,377,472.07 and 518,939.36 is: 777,396.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,510.28 : 1,377,472.07 = 518,939.36 : x
  2. Step 2: Convert to fraction form
    919,510.28/1,377,472.07 = 518,939.36/x
  3. Step 3: Cross multiply
    919,510.28x = 1,377,472.07 × 518,939.36
  4. Step 4: Simplify right side
    919,510.28x = 714,824,474,423.68
  5. Step 5: Solve for x
    x = 714,824,474,423.68/919,510.28
  6. Step 6: Final answer
    x = 777,396.94

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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.