Finding the Fourth Proportional to 1,798,638.48, 2,480,945.76 and 1,153,036.08
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Solution
The fourth proportional to 1,798,638.48, 2,480,945.76 and 1,153,036.08 is: 1,590,436.32
Step by Step Solution
- Step 1: Write the proportion equation
1,798,638.48 : 2,480,945.76 = 1,153,036.08 : x - Step 2: Convert to fraction form
1,798,638.48/2,480,945.76 = 1,153,036.08/x - Step 3: Cross multiply
1,798,638.48x = 2,480,945.76 × 1,153,036.08 - Step 4: Simplify right side
1,798,638.48x = 2,860,619,973,803.02 - Step 5: Solve for x
x = 2,860,619,973,803.02/1,798,638.48 - Step 6: Final answer
x = 1,590,436.32
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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.