Home / 659,929.68-990,017.64-300,126.60

Finding the Fourth Proportional to 659,929.68, 990,017.64 and 300,126.60

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Solution

The fourth proportional to 659,929.68, 990,017.64 and 300,126.60 is: 450,245.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,929.68 : 990,017.64 = 300,126.60 : x
  2. Step 2: Convert to fraction form
    659,929.68/990,017.64 = 300,126.60/x
  3. Step 3: Cross multiply
    659,929.68x = 990,017.64 × 300,126.60
  4. Step 4: Simplify right side
    659,929.68x = 297,130,628,233.22
  5. Step 5: Solve for x
    x = 297,130,628,233.22/659,929.68
  6. Step 6: Final answer
    x = 450,245.89

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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.