Home / 719,821.33-1,078,901.63-270,255.47

Finding the Fourth Proportional to 719,821.33, 1,078,901.63 and 270,255.47

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Solution

The fourth proportional to 719,821.33, 1,078,901.63 and 270,255.47 is: 405,071.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,821.33 : 1,078,901.63 = 270,255.47 : x
  2. Step 2: Convert to fraction form
    719,821.33/1,078,901.63 = 270,255.47/x
  3. Step 3: Cross multiply
    719,821.33x = 1,078,901.63 × 270,255.47
  4. Step 4: Simplify right side
    719,821.33x = 291,579,066,675.82
  5. Step 5: Solve for x
    x = 291,579,066,675.82/719,821.33
  6. Step 6: Final answer
    x = 405,071.44

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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.