Home / 1,311,561.79-1,809,959.36-760,384.93

Finding the Fourth Proportional to 1,311,561.79, 1,809,959.36 and 760,384.93

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Solution

The fourth proportional to 1,311,561.79, 1,809,959.36 and 760,384.93 is: 1,049,333.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,561.79 : 1,809,959.36 = 760,384.93 : x
  2. Step 2: Convert to fraction form
    1,311,561.79/1,809,959.36 = 760,384.93/x
  3. Step 3: Cross multiply
    1,311,561.79x = 1,809,959.36 × 760,384.93
  4. Step 4: Simplify right side
    1,311,561.79x = 1,376,265,821,256.45
  5. Step 5: Solve for x
    x = 1,376,265,821,256.45/1,311,561.79
  6. Step 6: Final answer
    x = 1,049,333.57

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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.