Home / 1,407,945.26-2,112,128.64-509,597.18

Finding the Fourth Proportional to 1,407,945.26, 2,112,128.64 and 509,597.18

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Solution

The fourth proportional to 1,407,945.26, 2,112,128.64 and 509,597.18 is: 764,472.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407,945.26 : 2,112,128.64 = 509,597.18 : x
  2. Step 2: Convert to fraction form
    1,407,945.26/2,112,128.64 = 509,597.18/x
  3. Step 3: Cross multiply
    1,407,945.26x = 2,112,128.64 × 509,597.18
  4. Step 4: Simplify right side
    1,407,945.26x = 1,076,334,791,549.92
  5. Step 5: Solve for x
    x = 1,076,334,791,549.92/1,407,945.26
  6. Step 6: Final answer
    x = 764,472.05

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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.