Home / 1,391,735.46-2,084,058.63-916,981.86

Finding the Fourth Proportional to 1,391,735.46, 2,084,058.63 and 916,981.86

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Solution

The fourth proportional to 1,391,735.46, 2,084,058.63 and 916,981.86 is: 1,373,137.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,735.46 : 2,084,058.63 = 916,981.86 : x
  2. Step 2: Convert to fraction form
    1,391,735.46/2,084,058.63 = 916,981.86/x
  3. Step 3: Cross multiply
    1,391,735.46x = 2,084,058.63 × 916,981.86
  4. Step 4: Simplify right side
    1,391,735.46x = 1,911,043,958,886.45
  5. Step 5: Solve for x
    x = 1,911,043,958,886.45/1,391,735.46
  6. Step 6: Final answer
    x = 1,373,137.36

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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.