Finding the Fourth Proportional to 2,877,038.40, 3,970,293.42 and 1,587,878.75
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Solution
The fourth proportional to 2,877,038.40, 3,970,293.42 and 1,587,878.75 is: 2,191,261.87
Step by Step Solution
- Step 1: Write the proportion equation
2,877,038.40 : 3,970,293.42 = 1,587,878.75 : x - Step 2: Convert to fraction form
2,877,038.40/3,970,293.42 = 1,587,878.75/x - Step 3: Cross multiply
2,877,038.40x = 3,970,293.42 × 1,587,878.75 - Step 4: Simplify right side
2,877,038.40x = 6,304,344,533,031.36 - Step 5: Solve for x
x = 6,304,344,533,031.36/2,877,038.40 - Step 6: Final answer
x = 2,191,261.87
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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.