Home / 759,404.50-1,139,107.85-310,125.37

Finding the Fourth Proportional to 759,404.50, 1,139,107.85 and 310,125.37

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Solution

The fourth proportional to 759,404.50, 1,139,107.85 and 310,125.37 is: 465,188.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,404.50 : 1,139,107.85 = 310,125.37 : x
  2. Step 2: Convert to fraction form
    759,404.50/1,139,107.85 = 310,125.37/x
  3. Step 3: Cross multiply
    759,404.50x = 1,139,107.85 × 310,125.37
  4. Step 4: Simplify right side
    759,404.50x = 353,266,243,451.16
  5. Step 5: Solve for x
    x = 353,266,243,451.16/759,404.50
  6. Step 6: Final answer
    x = 465,188.50

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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.