Finding the Fourth Proportional to 1,316,417.67, 1,816,643.70 and 743,445.54
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Solution
The fourth proportional to 1,316,417.67, 1,816,643.70 and 743,445.54 is: 1,025,947.68
Step by Step Solution
- Step 1: Write the proportion equation
1,316,417.67 : 1,816,643.70 = 743,445.54 : x - Step 2: Convert to fraction form
1,316,417.67/1,816,643.70 = 743,445.54/x - Step 3: Cross multiply
1,316,417.67x = 1,816,643.70 × 743,445.54 - Step 4: Simplify right side
1,316,417.67x = 1,350,575,656,534.10 - Step 5: Solve for x
x = 1,350,575,656,534.10/1,316,417.67 - Step 6: Final answer
x = 1,025,947.68
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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.