Home / 1,008,488.21-1,391,713.72-555,779.21

Finding the Fourth Proportional to 1,008,488.21, 1,391,713.72 and 555,779.21

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Solution

The fourth proportional to 1,008,488.21, 1,391,713.72 and 555,779.21 is: 766,975.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,488.21 : 1,391,713.72 = 555,779.21 : x
  2. Step 2: Convert to fraction form
    1,008,488.21/1,391,713.72 = 555,779.21/x
  3. Step 3: Cross multiply
    1,008,488.21x = 1,391,713.72 × 555,779.21
  4. Step 4: Simplify right side
    1,008,488.21x = 773,485,543,499.75
  5. Step 5: Solve for x
    x = 773,485,543,499.75/1,008,488.21
  6. Step 6: Final answer
    x = 766,975.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.