Home / 759,686.95-1,139,109.78-310,723.14

Finding the Fourth Proportional to 759,686.95, 1,139,109.78 and 310,723.14

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Solution

The fourth proportional to 759,686.95, 1,139,109.78 and 310,723.14 is: 465,912.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,686.95 : 1,139,109.78 = 310,723.14 : x
  2. Step 2: Convert to fraction form
    759,686.95/1,139,109.78 = 310,723.14/x
  3. Step 3: Cross multiply
    759,686.95x = 1,139,109.78 × 310,723.14
  4. Step 4: Simplify right side
    759,686.95x = 353,947,766,675.69
  5. Step 5: Solve for x
    x = 353,947,766,675.69/759,686.95
  6. Step 6: Final answer
    x = 465,912.66

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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.