Finding the Fourth Proportional to 1,584,221.76, 2,186,341.68 and 905,143.68
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Solution
The fourth proportional to 1,584,221.76, 2,186,341.68 and 905,143.68 is: 1,249,164.36
Step by Step Solution
- Step 1: Write the proportion equation
1,584,221.76 : 2,186,341.68 = 905,143.68 : x - Step 2: Convert to fraction form
1,584,221.76/2,186,341.68 = 905,143.68/x - Step 3: Cross multiply
1,584,221.76x = 2,186,341.68 × 905,143.68 - Step 4: Simplify right side
1,584,221.76x = 1,978,953,353,972.58 - Step 5: Solve for x
x = 1,978,953,353,972.58/1,584,221.76 - Step 6: Final answer
x = 1,249,164.36
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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.