Home / 1,319,748.08-1,821,287.64-716,136.56

Finding the Fourth Proportional to 1,319,748.08, 1,821,287.64 and 716,136.56

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Solution

The fourth proportional to 1,319,748.08, 1,821,287.64 and 716,136.56 is: 988,287.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,748.08 : 1,821,287.64 = 716,136.56 : x
  2. Step 2: Convert to fraction form
    1,319,748.08/1,821,287.64 = 716,136.56/x
  3. Step 3: Cross multiply
    1,319,748.08x = 1,821,287.64 × 716,136.56
  4. Step 4: Simplify right side
    1,319,748.08x = 1,304,290,665,280.12
  5. Step 5: Solve for x
    x = 1,304,290,665,280.12/1,319,748.08
  6. Step 6: Final answer
    x = 988,287.60

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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.