Finding the Fourth Proportional to 1,348,871.12, 2,021,562.36 and 1,009,247.12
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Solution
The fourth proportional to 1,348,871.12, 2,021,562.36 and 1,009,247.12 is: 1,512,565.55
Step by Step Solution
- Step 1: Write the proportion equation
1,348,871.12 : 2,021,562.36 = 1,009,247.12 : x - Step 2: Convert to fraction form
1,348,871.12/2,021,562.36 = 1,009,247.12/x - Step 3: Cross multiply
1,348,871.12x = 2,021,562.36 × 1,009,247.12 - Step 4: Simplify right side
1,348,871.12x = 2,040,255,989,730.40 - Step 5: Solve for x
x = 2,040,255,989,730.40/1,348,871.12 - Step 6: Final answer
x = 1,512,565.55
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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.