Finding the Fourth Proportional to 3,180,713.18, 4,389,403.27 and 1,730,418.99
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Solution
The fourth proportional to 3,180,713.18, 4,389,403.27 and 1,730,418.99 is: 2,387,988.59
Step by Step Solution
- Step 1: Write the proportion equation
3,180,713.18 : 4,389,403.27 = 1,730,418.99 : x - Step 2: Convert to fraction form
3,180,713.18/4,389,403.27 = 1,730,418.99/x - Step 3: Cross multiply
3,180,713.18x = 4,389,403.27 × 1,730,418.99 - Step 4: Simplify right side
3,180,713.18x = 7,595,506,773,176.10 - Step 5: Solve for x
x = 7,595,506,773,176.10/3,180,713.18 - Step 6: Final answer
x = 2,387,988.59
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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.