Finding the Fourth Proportional to 1,121,878.84, 1,548,314.68 and 692,147.92
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Solution
The fourth proportional to 1,121,878.84, 1,548,314.68 and 692,147.92 is: 955,239.32
Step by Step Solution
- Step 1: Write the proportion equation
1,121,878.84 : 1,548,314.68 = 692,147.92 : x - Step 2: Convert to fraction form
1,121,878.84/1,548,314.68 = 692,147.92/x - Step 3: Cross multiply
1,121,878.84x = 1,548,314.68 × 692,147.92 - Step 4: Simplify right side
1,121,878.84x = 1,071,662,779,256.26 - Step 5: Solve for x
x = 1,071,662,779,256.26/1,121,878.84 - Step 6: Final answer
x = 955,239.32
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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.