Finding the Fourth Proportional to 2,489,783.58, 3,728,688.19 and 1,421,587.98
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Solution
The fourth proportional to 2,489,783.58, 3,728,688.19 and 1,421,587.98 is: 2,128,963.48
Step by Step Solution
- Step 1: Write the proportion equation
2,489,783.58 : 3,728,688.19 = 1,421,587.98 : x - Step 2: Convert to fraction form
2,489,783.58/3,728,688.19 = 1,421,587.98/x - Step 3: Cross multiply
2,489,783.58x = 3,728,688.19 × 1,421,587.98 - Step 4: Simplify right side
2,489,783.58x = 5,300,658,312,071.96 - Step 5: Solve for x
x = 5,300,658,312,071.96/2,489,783.58 - Step 6: Final answer
x = 2,128,963.48
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.