Home / 819,101.79-1,130,417.24-496,825.47

Finding the Fourth Proportional to 819,101.79, 1,130,417.24 and 496,825.47

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Solution

The fourth proportional to 819,101.79, 1,130,417.24 and 496,825.47 is: 685,653.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,101.79 : 1,130,417.24 = 496,825.47 : x
  2. Step 2: Convert to fraction form
    819,101.79/1,130,417.24 = 496,825.47/x
  3. Step 3: Cross multiply
    819,101.79x = 1,130,417.24 × 496,825.47
  4. Step 4: Simplify right side
    819,101.79x = 561,620,074,074.98
  5. Step 5: Solve for x
    x = 561,620,074,074.98/819,101.79
  6. Step 6: Final answer
    x = 685,653.58

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1.5x scale

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.