Finding the Fourth Proportional to 986,854.10, 1,361,862.72 and 534,145.10
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Solution
The fourth proportional to 986,854.10, 1,361,862.72 and 534,145.10 is: 737,122.43
Step by Step Solution
- Step 1: Write the proportion equation
986,854.10 : 1,361,862.72 = 534,145.10 : x - Step 2: Convert to fraction form
986,854.10/1,361,862.72 = 534,145.10/x - Step 3: Cross multiply
986,854.10x = 1,361,862.72 × 534,145.10 - Step 4: Simplify right side
986,854.10x = 727,432,291,951.36 - Step 5: Solve for x
x = 727,432,291,951.36/986,854.10 - Step 6: Final answer
x = 737,122.43
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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.