Home / 744,247.49-1,027,030.53-421,979.37

Finding the Fourth Proportional to 744,247.49, 1,027,030.53 and 421,979.37

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Solution

The fourth proportional to 744,247.49, 1,027,030.53 and 421,979.37 is: 582,313.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,247.49 : 1,027,030.53 = 421,979.37 : x
  2. Step 2: Convert to fraction form
    744,247.49/1,027,030.53 = 421,979.37/x
  3. Step 3: Cross multiply
    744,247.49x = 1,027,030.53 × 421,979.37
  4. Step 4: Simplify right side
    744,247.49x = 433,385,696,020.17
  5. Step 5: Solve for x
    x = 433,385,696,020.17/744,247.49
  6. Step 6: Final answer
    x = 582,313.95

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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.