Home / 759,404.56-1,139,107.95-310,125.43

Finding the Fourth Proportional to 759,404.56, 1,139,107.95 and 310,125.43

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Solution

The fourth proportional to 759,404.56, 1,139,107.95 and 310,125.43 is: 465,188.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,404.56 : 1,139,107.95 = 310,125.43 : x
  2. Step 2: Convert to fraction form
    759,404.56/1,139,107.95 = 310,125.43/x
  3. Step 3: Cross multiply
    759,404.56x = 1,139,107.95 × 310,125.43
  4. Step 4: Simplify right side
    759,404.56x = 353,266,342,810.17
  5. Step 5: Solve for x
    x = 353,266,342,810.17/759,404.56
  6. Step 6: Final answer
    x = 465,188.60

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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.