Finding the Fourth Proportional to 2,153,230.58, 2,971,430.74 and 1,173,210.46
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Solution
The fourth proportional to 2,153,230.58, 2,971,430.74 and 1,173,210.46 is: 1,619,015.47
Step by Step Solution
- Step 1: Write the proportion equation
2,153,230.58 : 2,971,430.74 = 1,173,210.46 : x - Step 2: Convert to fraction form
2,153,230.58/2,971,430.74 = 1,173,210.46/x - Step 3: Cross multiply
2,153,230.58x = 2,971,430.74 × 1,173,210.46 - Step 4: Simplify right side
2,153,230.58x = 3,486,113,625,333.54 - Step 5: Solve for x
x = 3,486,113,625,333.54/2,153,230.58 - Step 6: Final answer
x = 1,619,015.47
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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.