Finding the Fourth Proportional to 1,209,798.99, 1,668,830.75 and 756,302.67
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Solution
The fourth proportional to 1,209,798.99, 1,668,830.75 and 756,302.67 is: 1,043,265.17
Step by Step Solution
- Step 1: Write the proportion equation
1,209,798.99 : 1,668,830.75 = 756,302.67 : x - Step 2: Convert to fraction form
1,209,798.99/1,668,830.75 = 756,302.67/x - Step 3: Cross multiply
1,209,798.99x = 1,668,830.75 × 756,302.67 - Step 4: Simplify right side
1,209,798.99x = 1,262,141,151,057.72 - Step 5: Solve for x
x = 1,262,141,151,057.72/1,209,798.99 - Step 6: Final answer
x = 1,043,265.17
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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.