Home / 835,390.63-1,252,885.20-385,679.44

Finding the Fourth Proportional to 835,390.63, 1,252,885.20 and 385,679.44

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Solution

The fourth proportional to 835,390.63, 1,252,885.20 and 385,679.44 is: 578,426.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,390.63 : 1,252,885.20 = 385,679.44 : x
  2. Step 2: Convert to fraction form
    835,390.63/1,252,885.20 = 385,679.44/x
  3. Step 3: Cross multiply
    835,390.63x = 1,252,885.20 × 385,679.44
  4. Step 4: Simplify right side
    835,390.63x = 483,212,062,320.29
  5. Step 5: Solve for x
    x = 483,212,062,320.29/835,390.63
  6. Step 6: Final answer
    x = 578,426.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.