Finding the Fourth Proportional to 1,389,675.24, 1,918,050.71 and 845,990.28
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Solution
The fourth proportional to 1,389,675.24, 1,918,050.71 and 845,990.28 is: 1,167,648.53
Step by Step Solution
- Step 1: Write the proportion equation
1,389,675.24 : 1,918,050.71 = 845,990.28 : x - Step 2: Convert to fraction form
1,389,675.24/1,918,050.71 = 845,990.28/x - Step 3: Cross multiply
1,389,675.24x = 1,918,050.71 × 845,990.28 - Step 4: Simplify right side
1,389,675.24x = 1,622,652,252,977.15 - Step 5: Solve for x
x = 1,622,652,252,977.15/1,389,675.24 - Step 6: Final answer
x = 1,167,648.53
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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.