Home / 1,201,879.56-1,658,590.74-718,421.16

Finding the Fourth Proportional to 1,201,879.56, 1,658,590.74 and 718,421.16

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Solution

The fourth proportional to 1,201,879.56, 1,658,590.74 and 718,421.16 is: 991,419.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,201,879.56 : 1,658,590.74 = 718,421.16 : x
  2. Step 2: Convert to fraction form
    1,201,879.56/1,658,590.74 = 718,421.16/x
  3. Step 3: Cross multiply
    1,201,879.56x = 1,658,590.74 × 718,421.16
  4. Step 4: Simplify right side
    1,201,879.56x = 1,191,566,683,396.06
  5. Step 5: Solve for x
    x = 1,191,566,683,396.06/1,201,879.56
  6. Step 6: Final answer
    x = 991,419.38

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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.