Finding the Fourth Proportional to 1,431,508.60, 1,975,529.93 and 842,701.75
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Solution
The fourth proportional to 1,431,508.60, 1,975,529.93 and 842,701.75 is: 1,162,956.71
Step by Step Solution
- Step 1: Write the proportion equation
1,431,508.60 : 1,975,529.93 = 842,701.75 : x - Step 2: Convert to fraction form
1,431,508.60/1,975,529.93 = 842,701.75/x - Step 3: Cross multiply
1,431,508.60x = 1,975,529.93 × 842,701.75 - Step 4: Simplify right side
1,431,508.60x = 1,664,782,532,702.52 - Step 5: Solve for x
x = 1,664,782,532,702.52/1,431,508.60 - Step 6: Final answer
x = 1,162,956.71
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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.