Home / 1,390,746.74-2,085,782.95-379,873.43

Finding the Fourth Proportional to 1,390,746.74, 2,085,782.95 and 379,873.43

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Solution

The fourth proportional to 1,390,746.74, 2,085,782.95 and 379,873.43 is: 569,718.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,746.74 : 2,085,782.95 = 379,873.43 : x
  2. Step 2: Convert to fraction form
    1,390,746.74/2,085,782.95 = 379,873.43/x
  3. Step 3: Cross multiply
    1,390,746.74x = 2,085,782.95 × 379,873.43
  4. Step 4: Simplify right side
    1,390,746.74x = 792,333,511,123.74
  5. Step 5: Solve for x
    x = 792,333,511,123.74/1,390,746.74
  6. Step 6: Final answer
    x = 569,718.04

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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.