Finding the Fourth Proportional to 2,877,028.71, 3,970,280.10 and 1,587,869.12
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Solution
The fourth proportional to 2,877,028.71, 3,970,280.10 and 1,587,869.12 is: 2,191,248.62
Step by Step Solution
- Step 1: Write the proportion equation
2,877,028.71 : 3,970,280.10 = 1,587,869.12 : x - Step 2: Convert to fraction form
2,877,028.71/3,970,280.10 = 1,587,869.12/x - Step 3: Cross multiply
2,877,028.71x = 3,970,280.10 × 1,587,869.12 - Step 4: Simplify right side
2,877,028.71x = 6,304,285,184,420.72 - Step 5: Solve for x
x = 6,304,285,184,420.72/2,877,028.71 - Step 6: Final answer
x = 2,191,248.62
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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.