Finding the Fourth Proportional to 2,153,959.32, 2,972,904.95 and 1,283,304.05
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Solution
The fourth proportional to 2,153,959.32, 2,972,904.95 and 1,283,304.05 is: 1,771,222.38
Step by Step Solution
- Step 1: Write the proportion equation
2,153,959.32 : 2,972,904.95 = 1,283,304.05 : x - Step 2: Convert to fraction form
2,153,959.32/2,972,904.95 = 1,283,304.05/x - Step 3: Cross multiply
2,153,959.32x = 2,972,904.95 × 1,283,304.05 - Step 4: Simplify right side
2,153,959.32x = 3,815,140,962,600.05 - Step 5: Solve for x
x = 3,815,140,962,600.05/2,153,959.32 - Step 6: Final answer
x = 1,771,222.38
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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.