Home / 759,687.21-1,139,110.13-310,723.35

Finding the Fourth Proportional to 759,687.21, 1,139,110.13 and 310,723.35

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Solution

The fourth proportional to 759,687.21, 1,139,110.13 and 310,723.35 is: 465,912.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,687.21 : 1,139,110.13 = 310,723.35 : x
  2. Step 2: Convert to fraction form
    759,687.21/1,139,110.13 = 310,723.35/x
  3. Step 3: Cross multiply
    759,687.21x = 1,139,110.13 × 310,723.35
  4. Step 4: Simplify right side
    759,687.21x = 353,948,114,058.92
  5. Step 5: Solve for x
    x = 353,948,114,058.92/759,687.21
  6. Step 6: Final answer
    x = 465,912.96

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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.