Finding the Fourth Proportional to 1,679,279.13, 2,317,428.23 and 915,331.05
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Solution
The fourth proportional to 1,679,279.13, 2,317,428.23 and 915,331.05 is: 1,263,169.40
Step by Step Solution
- Step 1: Write the proportion equation
1,679,279.13 : 2,317,428.23 = 915,331.05 : x - Step 2: Convert to fraction form
1,679,279.13/2,317,428.23 = 915,331.05/x - Step 3: Cross multiply
1,679,279.13x = 2,317,428.23 × 915,331.05 - Step 4: Simplify right side
1,679,279.13x = 2,121,214,015,065.54 - Step 5: Solve for x
x = 2,121,214,015,065.54/1,679,279.13 - Step 6: Final answer
x = 1,263,169.40
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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.