Home / 980,607.87-1,470,069.26-340,828.49

Finding the Fourth Proportional to 980,607.87, 1,470,069.26 and 340,828.49

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Solution

The fourth proportional to 980,607.87, 1,470,069.26 and 340,828.49 is: 510,949.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,607.87 : 1,470,069.26 = 340,828.49 : x
  2. Step 2: Convert to fraction form
    980,607.87/1,470,069.26 = 340,828.49/x
  3. Step 3: Cross multiply
    980,607.87x = 1,470,069.26 × 340,828.49
  4. Step 4: Simplify right side
    980,607.87x = 501,041,486,081.22
  5. Step 5: Solve for x
    x = 501,041,486,081.22/980,607.87
  6. Step 6: Final answer
    x = 510,949.89

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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.