Finding the Fourth Proportional to 1,420,235.29, 1,959,937.23 and 808,427.45
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Solution
The fourth proportional to 1,420,235.29, 1,959,937.23 and 808,427.45 is: 1,115,637.01
Step by Step Solution
- Step 1: Write the proportion equation
1,420,235.29 : 1,959,937.23 = 808,427.45 : x - Step 2: Convert to fraction form
1,420,235.29/1,959,937.23 = 808,427.45/x - Step 3: Cross multiply
1,420,235.29x = 1,959,937.23 × 808,427.45 - Step 4: Simplify right side
1,420,235.29x = 1,584,467,057,008.96 - Step 5: Solve for x
x = 1,584,467,057,008.96/1,420,235.29 - Step 6: Final answer
x = 1,115,637.01
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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.