Home / 840,378.39-1,159,703.37-458,418.84

Finding the Fourth Proportional to 840,378.39, 1,159,703.37 and 458,418.84

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Solution

The fourth proportional to 840,378.39, 1,159,703.37 and 458,418.84 is: 632,607.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,378.39 : 1,159,703.37 = 458,418.84 : x
  2. Step 2: Convert to fraction form
    840,378.39/1,159,703.37 = 458,418.84/x
  3. Step 3: Cross multiply
    840,378.39x = 1,159,703.37 × 458,418.84
  4. Step 4: Simplify right side
    840,378.39x = 531,629,873,619.49
  5. Step 5: Solve for x
    x = 531,629,873,619.49/840,378.39
  6. Step 6: Final answer
    x = 632,607.74

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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.