Home / 877,971.04-1,317,336.08-309,757.68

Finding the Fourth Proportional to 877,971.04, 1,317,336.08 and 309,757.68

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Solution

The fourth proportional to 877,971.04, 1,317,336.08 and 309,757.68 is: 464,770.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,971.04 : 1,317,336.08 = 309,757.68 : x
  2. Step 2: Convert to fraction form
    877,971.04/1,317,336.08 = 309,757.68/x
  3. Step 3: Cross multiply
    877,971.04x = 1,317,336.08 × 309,757.68
  4. Step 4: Simplify right side
    877,971.04x = 408,054,967,921.09
  5. Step 5: Solve for x
    x = 408,054,967,921.09/877,971.04
  6. Step 6: Final answer
    x = 464,770.42

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1.5x scale

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.