Finding the Fourth Proportional to 2,128,944.84, 2,937,505.32 and 1,223,351.88
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Solution
The fourth proportional to 2,128,944.84, 2,937,505.32 and 1,223,351.88 is: 1,687,973.59
Step by Step Solution
- Step 1: Write the proportion equation
2,128,944.84 : 2,937,505.32 = 1,223,351.88 : x - Step 2: Convert to fraction form
2,128,944.84/2,937,505.32 = 1,223,351.88/x - Step 3: Cross multiply
2,128,944.84x = 2,937,505.32 × 1,223,351.88 - Step 4: Simplify right side
2,128,944.84x = 3,593,602,655,732.00 - Step 5: Solve for x
x = 3,593,602,655,732.00/2,128,944.84 - Step 6: Final answer
x = 1,687,973.59
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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.