Home / 759,700.80-1,139,130.50-310,736.93

Finding the Fourth Proportional to 759,700.80, 1,139,130.50 and 310,736.93

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Solution

The fourth proportional to 759,700.80, 1,139,130.50 and 310,736.93 is: 465,933.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,700.80 : 1,139,130.50 = 310,736.93 : x
  2. Step 2: Convert to fraction form
    759,700.80/1,139,130.50 = 310,736.93/x
  3. Step 3: Cross multiply
    759,700.80x = 1,139,130.50 × 310,736.93
  4. Step 4: Simplify right side
    759,700.80x = 353,969,914,439.37
  5. Step 5: Solve for x
    x = 353,969,914,439.37/759,700.80
  6. Step 6: Final answer
    x = 465,933.32

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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.