Home / 346,922.57-520,837.05-278,570.62

Finding the Fourth Proportional to 346,922.57, 520,837.05 and 278,570.62

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Solution

The fourth proportional to 346,922.57, 520,837.05 and 278,570.62 is: 418,219.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,922.57 : 520,837.05 = 278,570.62 : x
  2. Step 2: Convert to fraction form
    346,922.57/520,837.05 = 278,570.62/x
  3. Step 3: Cross multiply
    346,922.57x = 520,837.05 × 278,570.62
  4. Step 4: Simplify right side
    346,922.57x = 145,089,897,333.29
  5. Step 5: Solve for x
    x = 145,089,897,333.29/346,922.57
  6. Step 6: Final answer
    x = 418,219.83

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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.