Finding the Fourth Proportional to 2,387,631.36, 3,294,420.40 and 1,420,572.76
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Solution
The fourth proportional to 2,387,631.36, 3,294,420.40 and 1,420,572.76 is: 1,960,086.45
Step by Step Solution
- Step 1: Write the proportion equation
2,387,631.36 : 3,294,420.40 = 1,420,572.76 : x - Step 2: Convert to fraction form
2,387,631.36/3,294,420.40 = 1,420,572.76/x - Step 3: Cross multiply
2,387,631.36x = 3,294,420.40 × 1,420,572.76 - Step 4: Simplify right side
2,387,631.36x = 4,679,963,880,228.30 - Step 5: Solve for x
x = 4,679,963,880,228.30/2,387,631.36 - Step 6: Final answer
x = 1,960,086.45
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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.