Home / 1,391,741.61-2,084,068.44-916,987.65

Finding the Fourth Proportional to 1,391,741.61, 2,084,068.44 and 916,987.65

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Solution

The fourth proportional to 1,391,741.61, 2,084,068.44 and 916,987.65 is: 1,373,146.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,741.61 : 2,084,068.44 = 916,987.65 : x
  2. Step 2: Convert to fraction form
    1,391,741.61/2,084,068.44 = 916,987.65/x
  3. Step 3: Cross multiply
    1,391,741.61x = 2,084,068.44 × 916,987.65
  4. Step 4: Simplify right side
    1,391,741.61x = 1,911,065,021,234.77
  5. Step 5: Solve for x
    x = 1,911,065,021,234.77/1,391,741.61
  6. Step 6: Final answer
    x = 1,373,146.43

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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.