Home / 1,308,751.20-1,961,668.80-509,767.20

Finding the Fourth Proportional to 1,308,751.20, 1,961,668.80 and 509,767.20

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Solution

The fourth proportional to 1,308,751.20, 1,961,668.80 and 509,767.20 is: 764,082.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308,751.20 : 1,961,668.80 = 509,767.20 : x
  2. Step 2: Convert to fraction form
    1,308,751.20/1,961,668.80 = 509,767.20/x
  3. Step 3: Cross multiply
    1,308,751.20x = 1,961,668.80 × 509,767.20
  4. Step 4: Simplify right side
    1,308,751.20x = 999,994,411,503.36
  5. Step 5: Solve for x
    x = 999,994,411,503.36/1,308,751.20
  6. Step 6: Final answer
    x = 764,082.90

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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.