Home / 758,646-1,046,941.20-419,145.84

Finding the Fourth Proportional to 758,646, 1,046,941.20 and 419,145.84

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Solution

The fourth proportional to 758,646, 1,046,941.20 and 419,145.84 is: 578,426.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,646 : 1,046,941.20 = 419,145.84 : x
  2. Step 2: Convert to fraction form
    758,646/1,046,941.20 = 419,145.84/x
  3. Step 3: Cross multiply
    758,646x = 1,046,941.20 × 419,145.84
  4. Step 4: Simplify right side
    758,646x = 438,821,048,704.61
  5. Step 5: Solve for x
    x = 438,821,048,704.61/758,646
  6. Step 6: Final answer
    x = 578,426.63

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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.