Finding the Fourth Proportional to 1,038,342, 1,432,909.10 and 579,451.68
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Solution
The fourth proportional to 1,038,342, 1,432,909.10 and 579,451.68 is: 799,641.72
Step by Step Solution
- Step 1: Write the proportion equation
1,038,342 : 1,432,909.10 = 579,451.68 : x - Step 2: Convert to fraction form
1,038,342/1,432,909.10 = 579,451.68/x - Step 3: Cross multiply
1,038,342x = 1,432,909.10 × 579,451.68 - Step 4: Simplify right side
1,038,342x = 830,301,582,385.03 - Step 5: Solve for x
x = 830,301,582,385.03/1,038,342 - Step 6: Final answer
x = 799,641.72
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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.