Finding the Fourth Proportional to 1,687,173.40, 2,328,292.99 and 912,801.76
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Solution
The fourth proportional to 1,687,173.40, 2,328,292.99 and 912,801.76 is: 1,259,663.02
Step by Step Solution
- Step 1: Write the proportion equation
1,687,173.40 : 2,328,292.99 = 912,801.76 : x - Step 2: Convert to fraction form
1,687,173.40/2,328,292.99 = 912,801.76/x - Step 3: Cross multiply
1,687,173.40x = 2,328,292.99 × 912,801.76 - Step 4: Simplify right side
1,687,173.40x = 2,125,269,934,387.93 - Step 5: Solve for x
x = 2,125,269,934,387.93/1,687,173.40 - Step 6: Final answer
x = 1,259,663.02
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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.