Finding the Fourth Proportional to 1,047,147.36, 1,445,023.68 and 639,930.24
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Solution
The fourth proportional to 1,047,147.36, 1,445,023.68 and 639,930.24 is: 883,079.48
Step by Step Solution
- Step 1: Write the proportion equation
1,047,147.36 : 1,445,023.68 = 639,930.24 : x - Step 2: Convert to fraction form
1,047,147.36/1,445,023.68 = 639,930.24/x - Step 3: Cross multiply
1,047,147.36x = 1,445,023.68 × 639,930.24 - Step 4: Simplify right side
1,047,147.36x = 924,714,350,348.08 - Step 5: Solve for x
x = 924,714,350,348.08/1,047,147.36 - Step 6: Final answer
x = 883,079.48
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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.