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Finding the Fourth Proportional to 759,699.80, 1,139,129 and 310,735.93

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Solution

The fourth proportional to 759,699.80, 1,139,129 and 310,735.93 is: 465,931.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,699.80 : 1,139,129 = 310,735.93 : x
  2. Step 2: Convert to fraction form
    759,699.80/1,139,129 = 310,735.93/x
  3. Step 3: Cross multiply
    759,699.80x = 1,139,129 × 310,735.93
  4. Step 4: Simplify right side
    759,699.80x = 353,968,309,204.97
  5. Step 5: Solve for x
    x = 353,968,309,204.97/759,699.80
  6. Step 6: Final answer
    x = 465,931.82

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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.