Finding the Fourth Proportional to 1,420,228.19, 1,959,927.42 and 808,420.34
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Solution
The fourth proportional to 1,420,228.19, 1,959,927.42 and 808,420.34 is: 1,115,627.19
Step by Step Solution
- Step 1: Write the proportion equation
1,420,228.19 : 1,959,927.42 = 808,420.34 : x - Step 2: Convert to fraction form
1,420,228.19/1,959,927.42 = 808,420.34/x - Step 3: Cross multiply
1,420,228.19x = 1,959,927.42 × 808,420.34 - Step 4: Simplify right side
1,420,228.19x = 1,584,445,181,452.09 - Step 5: Solve for x
x = 1,584,445,181,452.09/1,420,228.19 - Step 6: Final answer
x = 1,115,627.19
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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.