Finding the Fourth Proportional to 2,172,848.16, 2,998,485.36 and 1,205,921.76
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Solution
The fourth proportional to 2,172,848.16, 2,998,485.36 and 1,205,921.76 is: 1,664,147.00
Step by Step Solution
- Step 1: Write the proportion equation
2,172,848.16 : 2,998,485.36 = 1,205,921.76 : x - Step 2: Convert to fraction form
2,172,848.16/2,998,485.36 = 1,205,921.76/x - Step 3: Cross multiply
2,172,848.16x = 2,998,485.36 × 1,205,921.76 - Step 4: Simplify right side
2,172,848.16x = 3,615,938,742,665.43 - Step 5: Solve for x
x = 3,615,938,742,665.43/2,172,848.16 - Step 6: Final answer
x = 1,664,147.00
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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.