Finding the Fourth Proportional to 1,354,311.81, 1,868,909.79 and 742,443.65
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Solution
The fourth proportional to 1,354,311.81, 1,868,909.79 and 742,443.65 is: 1,024,550.02
Step by Step Solution
- Step 1: Write the proportion equation
1,354,311.81 : 1,868,909.79 = 742,443.65 : x - Step 2: Convert to fraction form
1,354,311.81/1,868,909.79 = 742,443.65/x - Step 3: Cross multiply
1,354,311.81x = 1,868,909.79 × 742,443.65 - Step 4: Simplify right side
1,354,311.81x = 1,387,560,196,663.78 - Step 5: Solve for x
x = 1,387,560,196,663.78/1,354,311.81 - Step 6: Final answer
x = 1,024,550.02
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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.