Finding the Fourth Proportional to 2,187,564.70, 3,281,347.05 and 1,656,123.70
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Solution
The fourth proportional to 2,187,564.70, 3,281,347.05 and 1,656,123.70 is: 2,484,185.55
Step by Step Solution
- Step 1: Write the proportion equation
2,187,564.70 : 3,281,347.05 = 1,656,123.70 : x - Step 2: Convert to fraction form
2,187,564.70/3,281,347.05 = 1,656,123.70/x - Step 3: Cross multiply
2,187,564.70x = 3,281,347.05 × 1,656,123.70 - Step 4: Simplify right side
2,187,564.70x = 5,434,316,617,430.09 - Step 5: Solve for x
x = 5,434,316,617,430.09/2,187,564.70 - Step 6: Final answer
x = 2,484,185.55
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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.