Finding the Fourth Proportional to 1,315,585.19, 1,815,507.54 and 711,973.19
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Solution
The fourth proportional to 1,315,585.19, 1,815,507.54 and 711,973.19 is: 982,522.99
Step by Step Solution
- Step 1: Write the proportion equation
1,315,585.19 : 1,815,507.54 = 711,973.19 : x - Step 2: Convert to fraction form
1,315,585.19/1,815,507.54 = 711,973.19/x - Step 3: Cross multiply
1,315,585.19x = 1,815,507.54 × 711,973.19 - Step 4: Simplify right side
1,315,585.19x = 1,292,592,694,722.85 - Step 5: Solve for x
x = 1,292,592,694,722.85/1,315,585.19 - Step 6: Final answer
x = 982,522.99
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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.