Finding the Fourth Proportional to 1,420,132.68, 1,959,773.13 and 775,553.04
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Solution
The fourth proportional to 1,420,132.68, 1,959,773.13 and 775,553.04 is: 1,070,257.75
Step by Step Solution
- Step 1: Write the proportion equation
1,420,132.68 : 1,959,773.13 = 775,553.04 : x - Step 2: Convert to fraction form
1,420,132.68/1,959,773.13 = 775,553.04/x - Step 3: Cross multiply
1,420,132.68x = 1,959,773.13 × 775,553.04 - Step 4: Simplify right side
1,420,132.68x = 1,519,908,008,681.82 - Step 5: Solve for x
x = 1,519,908,008,681.82/1,420,132.68 - Step 6: Final answer
x = 1,070,257.75
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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.