Home / 683,347.06-943,201.33-392,990.35

Finding the Fourth Proportional to 683,347.06, 943,201.33 and 392,990.35

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Solution

The fourth proportional to 683,347.06, 943,201.33 and 392,990.35 is: 542,431.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,347.06 : 943,201.33 = 392,990.35 : x
  2. Step 2: Convert to fraction form
    683,347.06/943,201.33 = 392,990.35/x
  3. Step 3: Cross multiply
    683,347.06x = 943,201.33 × 392,990.35
  4. Step 4: Simplify right side
    683,347.06x = 370,669,016,075.02
  5. Step 5: Solve for x
    x = 370,669,016,075.02/683,347.06
  6. Step 6: Final answer
    x = 542,431.57

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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.