Finding the Fourth Proportional to 1,420,103.52, 1,959,483.84 and 808,220.58
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Solution
The fourth proportional to 1,420,103.52, 1,959,483.84 and 808,220.58 is: 1,115,196.99
Step by Step Solution
- Step 1: Write the proportion equation
1,420,103.52 : 1,959,483.84 = 808,220.58 : x - Step 2: Convert to fraction form
1,420,103.52/1,959,483.84 = 808,220.58/x - Step 3: Cross multiply
1,420,103.52x = 1,959,483.84 × 808,220.58 - Step 4: Simplify right side
1,420,103.52x = 1,583,695,165,665.43 - Step 5: Solve for x
x = 1,583,695,165,665.43/1,420,103.52 - Step 6: Final answer
x = 1,115,196.99
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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.