Home / 759,742.48-1,139,192.92-310,778.60

Finding the Fourth Proportional to 759,742.48, 1,139,192.92 and 310,778.60

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Solution

The fourth proportional to 759,742.48, 1,139,192.92 and 310,778.60 is: 465,995.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,742.48 : 1,139,192.92 = 310,778.60 : x
  2. Step 2: Convert to fraction form
    759,742.48/1,139,192.92 = 310,778.60/x
  3. Step 3: Cross multiply
    759,742.48x = 1,139,192.92 × 310,778.60
  4. Step 4: Simplify right side
    759,742.48x = 354,036,780,807.51
  5. Step 5: Solve for x
    x = 354,036,780,807.51/759,742.48
  6. Step 6: Final answer
    x = 465,995.77

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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.