Finding the Fourth Proportional to 1,490,472.30, 2,235,708.45 and 1,325,135.10
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Solution
The fourth proportional to 1,490,472.30, 2,235,708.45 and 1,325,135.10 is: 1,987,702.65
Step by Step Solution
- Step 1: Write the proportion equation
1,490,472.30 : 2,235,708.45 = 1,325,135.10 : x - Step 2: Convert to fraction form
1,490,472.30/2,235,708.45 = 1,325,135.10/x - Step 3: Cross multiply
1,490,472.30x = 2,235,708.45 × 1,325,135.10 - Step 4: Simplify right side
1,490,472.30x = 2,962,615,740,461.60 - Step 5: Solve for x
x = 2,962,615,740,461.60/1,490,472.30 - Step 6: Final answer
x = 1,987,702.65
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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.