Finding the Fourth Proportional to 2,128,483.37, 2,937,312.30 and 1,210,691.81
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Solution
The fourth proportional to 2,128,483.37, 2,937,312.30 and 1,210,691.81 is: 1,670,757.68
Step by Step Solution
- Step 1: Write the proportion equation
2,128,483.37 : 2,937,312.30 = 1,210,691.81 : x - Step 2: Convert to fraction form
2,128,483.37/2,937,312.30 = 1,210,691.81/x - Step 3: Cross multiply
2,128,483.37x = 2,937,312.30 × 1,210,691.81 - Step 4: Simplify right side
2,128,483.37x = 3,556,179,930,335.70 - Step 5: Solve for x
x = 3,556,179,930,335.70/2,128,483.37 - Step 6: Final answer
x = 1,670,757.68
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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.