Home / 919,509.27-1,377,470.57-518,938.35

Finding the Fourth Proportional to 919,509.27, 1,377,470.57 and 518,938.35

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Solution

The fourth proportional to 919,509.27, 1,377,470.57 and 518,938.35 is: 777,395.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,509.27 : 1,377,470.57 = 518,938.35 : x
  2. Step 2: Convert to fraction form
    919,509.27/1,377,470.57 = 518,938.35/x
  3. Step 3: Cross multiply
    919,509.27x = 1,377,470.57 × 518,938.35
  4. Step 4: Simplify right side
    919,509.27x = 714,822,302,174.67
  5. Step 5: Solve for x
    x = 714,822,302,174.67/919,509.27
  6. Step 6: Final answer
    x = 777,395.43

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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.