Home / 939,289.73-1,296,220.30-509,569.81

Finding the Fourth Proportional to 939,289.73, 1,296,220.30 and 509,569.81

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Solution

The fourth proportional to 939,289.73, 1,296,220.30 and 509,569.81 is: 703,206.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,289.73 : 1,296,220.30 = 509,569.81 : x
  2. Step 2: Convert to fraction form
    939,289.73/1,296,220.30 = 509,569.81/x
  3. Step 3: Cross multiply
    939,289.73x = 1,296,220.30 × 509,569.81
  4. Step 4: Simplify right side
    939,289.73x = 660,514,727,474.67
  5. Step 5: Solve for x
    x = 660,514,727,474.67/939,289.73
  6. Step 6: Final answer
    x = 703,206.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.