Home / 839,392.21-1,158,357.63-457,418.98

Finding the Fourth Proportional to 839,392.21, 1,158,357.63 and 457,418.98

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Solution

The fourth proportional to 839,392.21, 1,158,357.63 and 457,418.98 is: 631,236.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,392.21 : 1,158,357.63 = 457,418.98 : x
  2. Step 2: Convert to fraction form
    839,392.21/1,158,357.63 = 457,418.98/x
  3. Step 3: Cross multiply
    839,392.21x = 1,158,357.63 × 457,418.98
  4. Step 4: Simplify right side
    839,392.21x = 529,854,765,589.82
  5. Step 5: Solve for x
    x = 529,854,765,589.82/839,392.21
  6. Step 6: Final answer
    x = 631,236.22

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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.