Finding the Fourth Proportional to 1,178,308.47, 1,768,237.73 and 646,203.17
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Solution
The fourth proportional to 1,178,308.47, 1,768,237.73 and 646,203.17 is: 969,729.79
Step by Step Solution
- Step 1: Write the proportion equation
1,178,308.47 : 1,768,237.73 = 646,203.17 : x - Step 2: Convert to fraction form
1,178,308.47/1,768,237.73 = 646,203.17/x - Step 3: Cross multiply
1,178,308.47x = 1,768,237.73 × 646,203.17 - Step 4: Simplify right side
1,178,308.47x = 1,142,640,830,052.44 - Step 5: Solve for x
x = 1,142,640,830,052.44/1,178,308.47 - Step 6: Final answer
x = 969,729.79
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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.