Home / 479,538.36-719,442.40-209,690.24

Finding the Fourth Proportional to 479,538.36, 719,442.40 and 209,690.24

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Solution

The fourth proportional to 479,538.36, 719,442.40 and 209,690.24 is: 314,594.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,538.36 : 719,442.40 = 209,690.24 : x
  2. Step 2: Convert to fraction form
    479,538.36/719,442.40 = 209,690.24/x
  3. Step 3: Cross multiply
    479,538.36x = 719,442.40 × 209,690.24
  4. Step 4: Simplify right side
    479,538.36x = 150,860,049,522.18
  5. Step 5: Solve for x
    x = 150,860,049,522.18/479,538.36
  6. Step 6: Final answer
    x = 314,594.33

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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.