Finding the Fourth Proportional to 1,478,555.80, 2,214,147.30 and 1,183,643.80
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Solution
The fourth proportional to 1,478,555.80, 2,214,147.30 and 1,183,643.80 is: 1,772,514.59
Step by Step Solution
- Step 1: Write the proportion equation
1,478,555.80 : 2,214,147.30 = 1,183,643.80 : x - Step 2: Convert to fraction form
1,478,555.80/2,214,147.30 = 1,183,643.80/x - Step 3: Cross multiply
1,478,555.80x = 2,214,147.30 × 1,183,643.80 - Step 4: Simplify right side
1,478,555.80x = 2,620,761,723,931.74 - Step 5: Solve for x
x = 2,620,761,723,931.74/1,478,555.80 - Step 6: Final answer
x = 1,772,514.59
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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.