Finding the Fourth Proportional to 1,610,021.48, 2,221,782.82 and 921,670.12
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Solution
The fourth proportional to 1,610,021.48, 2,221,782.82 and 921,670.12 is: 1,271,877.96
Step by Step Solution
- Step 1: Write the proportion equation
1,610,021.48 : 2,221,782.82 = 921,670.12 : x - Step 2: Convert to fraction form
1,610,021.48/2,221,782.82 = 921,670.12/x - Step 3: Cross multiply
1,610,021.48x = 2,221,782.82 × 921,670.12 - Step 4: Simplify right side
1,610,021.48x = 2,047,750,838,323.34 - Step 5: Solve for x
x = 2,047,750,838,323.34/1,610,021.48 - Step 6: Final answer
x = 1,271,877.96
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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.