Finding the Fourth Proportional to 1,420,774.92, 2,129,673.85 and 661,990.71
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Solution
The fourth proportional to 1,420,774.92, 2,129,673.85 and 661,990.71 is: 992,292.50
Step by Step Solution
- Step 1: Write the proportion equation
1,420,774.92 : 2,129,673.85 = 661,990.71 : x - Step 2: Convert to fraction form
1,420,774.92/2,129,673.85 = 661,990.71/x - Step 3: Cross multiply
1,420,774.92x = 2,129,673.85 × 661,990.71 - Step 4: Simplify right side
1,420,774.92x = 1,409,824,304,029.93 - Step 5: Solve for x
x = 1,409,824,304,029.93/1,420,774.92 - Step 6: Final answer
x = 992,292.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.