Home / 985,284-1,478,140.38-302,171.22

Finding the Fourth Proportional to 985,284, 1,478,140.38 and 302,171.22

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Solution

The fourth proportional to 985,284, 1,478,140.38 and 302,171.22 is: 453,322.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,284 : 1,478,140.38 = 302,171.22 : x
  2. Step 2: Convert to fraction form
    985,284/1,478,140.38 = 302,171.22/x
  3. Step 3: Cross multiply
    985,284x = 1,478,140.38 × 302,171.22
  4. Step 4: Simplify right side
    985,284x = 446,651,481,955.86
  5. Step 5: Solve for x
    x = 446,651,481,955.86/985,284
  6. Step 6: Final answer
    x = 453,322.58

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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.