Finding the Fourth Proportional to 1,679,349.86, 2,317,502.98 and 915,403.42
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Solution
The fourth proportional to 1,679,349.86, 2,317,502.98 and 915,403.42 is: 1,263,256.81
Step by Step Solution
- Step 1: Write the proportion equation
1,679,349.86 : 2,317,502.98 = 915,403.42 : x - Step 2: Convert to fraction form
1,679,349.86/2,317,502.98 = 915,403.42/x - Step 3: Cross multiply
1,679,349.86x = 2,317,502.98 × 915,403.42 - Step 4: Simplify right side
1,679,349.86x = 2,121,450,153,752.19 - Step 5: Solve for x
x = 2,121,450,153,752.19/1,679,349.86 - Step 6: Final answer
x = 1,263,256.81
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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.