Finding the Fourth Proportional to 1,679,278.13, 2,317,426.85 and 915,330.05
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Solution
The fourth proportional to 1,679,278.13, 2,317,426.85 and 915,330.05 is: 1,263,168.02
Step by Step Solution
- Step 1: Write the proportion equation
1,679,278.13 : 2,317,426.85 = 915,330.05 : x - Step 2: Convert to fraction form
1,679,278.13/2,317,426.85 = 915,330.05/x - Step 3: Cross multiply
1,679,278.13x = 2,317,426.85 × 915,330.05 - Step 4: Simplify right side
1,679,278.13x = 2,121,210,429,905.19 - Step 5: Solve for x
x = 2,121,210,429,905.19/1,679,278.13 - Step 6: Final answer
x = 1,263,168.02
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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.