Home / 759,688.80-1,139,112.50-310,724.96

Finding the Fourth Proportional to 759,688.80, 1,139,112.50 and 310,724.96

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Solution

The fourth proportional to 759,688.80, 1,139,112.50 and 310,724.96 is: 465,915.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,688.80 : 1,139,112.50 = 310,724.96 : x
  2. Step 2: Convert to fraction form
    759,688.80/1,139,112.50 = 310,724.96/x
  3. Step 3: Cross multiply
    759,688.80x = 1,139,112.50 × 310,724.96
  4. Step 4: Simplify right side
    759,688.80x = 353,950,685,998
  5. Step 5: Solve for x
    x = 353,950,685,998/759,688.80
  6. Step 6: Final answer
    x = 465,915.37

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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.