Finding the Fourth Proportional to 1,387,237.98, 2,066,228.93 and 1,324,995.76
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Solution
The fourth proportional to 1,387,237.98, 2,066,228.93 and 1,324,995.76 is: 1,973,521.93
Step by Step Solution
- Step 1: Write the proportion equation
1,387,237.98 : 2,066,228.93 = 1,324,995.76 : x - Step 2: Convert to fraction form
1,387,237.98/2,066,228.93 = 1,324,995.76/x - Step 3: Cross multiply
1,387,237.98x = 2,066,228.93 × 1,324,995.76 - Step 4: Simplify right side
1,387,237.98x = 2,737,744,571,439.34 - Step 5: Solve for x
x = 2,737,744,571,439.34/1,387,237.98 - Step 6: Final answer
x = 1,973,521.93
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.