Finding the Fourth Proportional to 1,139,540.48, 1,572,502.08 and 623,191.68
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Solution
The fourth proportional to 1,139,540.48, 1,572,502.08 and 623,191.68 is: 859,969.64
Step by Step Solution
- Step 1: Write the proportion equation
1,139,540.48 : 1,572,502.08 = 623,191.68 : x - Step 2: Convert to fraction form
1,139,540.48/1,572,502.08 = 623,191.68/x - Step 3: Cross multiply
1,139,540.48x = 1,572,502.08 × 623,191.68 - Step 4: Simplify right side
1,139,540.48x = 979,970,213,038.70 - Step 5: Solve for x
x = 979,970,213,038.70/1,139,540.48 - Step 6: Final answer
x = 859,969.64
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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.