Home / 1,371,782.79-1,893,984.12-856,321.47

Finding the Fourth Proportional to 1,371,782.79, 1,893,984.12 and 856,321.47

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Solution

The fourth proportional to 1,371,782.79, 1,893,984.12 and 856,321.47 is: 1,182,300.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,371,782.79 : 1,893,984.12 = 856,321.47 : x
  2. Step 2: Convert to fraction form
    1,371,782.79/1,893,984.12 = 856,321.47/x
  3. Step 3: Cross multiply
    1,371,782.79x = 1,893,984.12 × 856,321.47
  4. Step 4: Simplify right side
    1,371,782.79x = 1,621,859,265,795.06
  5. Step 5: Solve for x
    x = 1,621,859,265,795.06/1,371,782.79
  6. Step 6: Final answer
    x = 1,182,300.34

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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.