Home / 759,724.47-1,139,165.96-310,760.59

Finding the Fourth Proportional to 759,724.47, 1,139,165.96 and 310,760.59

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Solution

The fourth proportional to 759,724.47, 1,139,165.96 and 310,760.59 is: 465,968.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,724.47 : 1,139,165.96 = 310,760.59 : x
  2. Step 2: Convert to fraction form
    759,724.47/1,139,165.96 = 310,760.59/x
  3. Step 3: Cross multiply
    759,724.47x = 1,139,165.96 × 310,760.59
  4. Step 4: Simplify right side
    759,724.47x = 354,007,885,837.52
  5. Step 5: Solve for x
    x = 354,007,885,837.52/759,724.47
  6. Step 6: Final answer
    x = 465,968.78

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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.