Finding the Fourth Proportional to 4,698,539.70, 7,047,809.55 and 2,808,971.70
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Solution
The fourth proportional to 4,698,539.70, 7,047,809.55 and 2,808,971.70 is: 4,213,457.55
Step by Step Solution
- Step 1: Write the proportion equation
4,698,539.70 : 7,047,809.55 = 2,808,971.70 : x - Step 2: Convert to fraction form
4,698,539.70/7,047,809.55 = 2,808,971.70/x - Step 3: Cross multiply
4,698,539.70x = 7,047,809.55 × 2,808,971.70 - Step 4: Simplify right side
4,698,539.70x = 19,797,097,572,939.73 - Step 5: Solve for x
x = 19,797,097,572,939.73/4,698,539.70 - Step 6: Final answer
x = 4,213,457.55
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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.