Finding the Fourth Proportional to 1,112,303.12, 1,668,454.02 and 402,165.09
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Solution
The fourth proportional to 1,112,303.12, 1,668,454.02 and 402,165.09 is: 603,247.40
Step by Step Solution
- Step 1: Write the proportion equation
1,112,303.12 : 1,668,454.02 = 402,165.09 : x - Step 2: Convert to fraction form
1,112,303.12/1,668,454.02 = 402,165.09/x - Step 3: Cross multiply
1,112,303.12x = 1,668,454.02 × 402,165.09 - Step 4: Simplify right side
1,112,303.12x = 670,993,961,114.16 - Step 5: Solve for x
x = 670,993,961,114.16/1,112,303.12 - Step 6: Final answer
x = 603,247.40
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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.