Home / 1,943,442.54-2,912,423.57-917,678.37

Finding the Fourth Proportional to 1,943,442.54, 2,912,423.57 and 917,678.37

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Solution

The fourth proportional to 1,943,442.54, 2,912,423.57 and 917,678.37 is: 1,375,223.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,943,442.54 : 2,912,423.57 = 917,678.37 : x
  2. Step 2: Convert to fraction form
    1,943,442.54/2,912,423.57 = 917,678.37/x
  3. Step 3: Cross multiply
    1,943,442.54x = 2,912,423.57 × 917,678.37
  4. Step 4: Simplify right side
    1,943,442.54x = 2,672,668,109,878.79
  5. Step 5: Solve for x
    x = 2,672,668,109,878.79/1,943,442.54
  6. Step 6: Final answer
    x = 1,375,223.63

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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.