Home / 1,391,722.89-2,084,040.47-916,968.93

Finding the Fourth Proportional to 1,391,722.89, 2,084,040.47 and 916,968.93

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Solution

The fourth proportional to 1,391,722.89, 2,084,040.47 and 916,968.93 is: 1,373,118.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,722.89 : 2,084,040.47 = 916,968.93 : x
  2. Step 2: Convert to fraction form
    1,391,722.89/2,084,040.47 = 916,968.93/x
  3. Step 3: Cross multiply
    1,391,722.89x = 2,084,040.47 × 916,968.93
  4. Step 4: Simplify right side
    1,391,722.89x = 1,911,000,359,852.60
  5. Step 5: Solve for x
    x = 1,911,000,359,852.60/1,391,722.89
  6. Step 6: Final answer
    x = 1,373,118.44

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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.