Home / 1,385,982.34-1,912,635.47-774,143.82

Finding the Fourth Proportional to 1,385,982.34, 1,912,635.47 and 774,143.82

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Solution

The fourth proportional to 1,385,982.34, 1,912,635.47 and 774,143.82 is: 1,068,307.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,982.34 : 1,912,635.47 = 774,143.82 : x
  2. Step 2: Convert to fraction form
    1,385,982.34/1,912,635.47 = 774,143.82/x
  3. Step 3: Cross multiply
    1,385,982.34x = 1,912,635.47 × 774,143.82
  4. Step 4: Simplify right side
    1,385,982.34x = 1,480,654,929,013.30
  5. Step 5: Solve for x
    x = 1,480,654,929,013.30/1,385,982.34
  6. Step 6: Final answer
    x = 1,068,307.21

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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.