Home / 979,531-1,351,678.62-549,728.14

Finding the Fourth Proportional to 979,531, 1,351,678.62 and 549,728.14

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Solution

The fourth proportional to 979,531, 1,351,678.62 and 549,728.14 is: 758,583.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,531 : 1,351,678.62 = 549,728.14 : x
  2. Step 2: Convert to fraction form
    979,531/1,351,678.62 = 549,728.14/x
  3. Step 3: Cross multiply
    979,531x = 1,351,678.62 × 549,728.14
  4. Step 4: Simplify right side
    979,531x = 743,055,773,650.37
  5. Step 5: Solve for x
    x = 743,055,773,650.37/979,531
  6. Step 6: Final answer
    x = 758,583.21

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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.