Finding the Fourth Proportional to 763,920.12, 1,053,841.14 and 508,945.08
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Solution
The fourth proportional to 763,920.12, 1,053,841.14 and 508,945.08 is: 702,098.62
Step by Step Solution
- Step 1: Write the proportion equation
763,920.12 : 1,053,841.14 = 508,945.08 : x - Step 2: Convert to fraction form
763,920.12/1,053,841.14 = 508,945.08/x - Step 3: Cross multiply
763,920.12x = 1,053,841.14 × 508,945.08 - Step 4: Simplify right side
763,920.12x = 536,347,263,304.59 - Step 5: Solve for x
x = 536,347,263,304.59/763,920.12 - Step 6: Final answer
x = 702,098.62
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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.