Finding the Fourth Proportional to 1,038,528.70, 1,557,793.05 and 987,207.10
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Solution
The fourth proportional to 1,038,528.70, 1,557,793.05 and 987,207.10 is: 1,480,810.65
Step by Step Solution
- Step 1: Write the proportion equation
1,038,528.70 : 1,557,793.05 = 987,207.10 : x - Step 2: Convert to fraction form
1,038,528.70/1,557,793.05 = 987,207.10/x - Step 3: Cross multiply
1,038,528.70x = 1,557,793.05 × 987,207.10 - Step 4: Simplify right side
1,038,528.70x = 1,537,864,359,290.66 - Step 5: Solve for x
x = 1,537,864,359,290.66/1,038,528.70 - Step 6: Final answer
x = 1,480,810.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.