Home / 759,309.62-1,047,802.28-419,757.62

Finding the Fourth Proportional to 759,309.62, 1,047,802.28 and 419,757.62

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Solution

The fourth proportional to 759,309.62, 1,047,802.28 and 419,757.62 is: 579,240.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,309.62 : 1,047,802.28 = 419,757.62 : x
  2. Step 2: Convert to fraction form
    759,309.62/1,047,802.28 = 419,757.62/x
  3. Step 3: Cross multiply
    759,309.62x = 1,047,802.28 × 419,757.62
  4. Step 4: Simplify right side
    759,309.62x = 439,822,983,945.57
  5. Step 5: Solve for x
    x = 439,822,983,945.57/759,309.62
  6. Step 6: Final answer
    x = 579,240.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.