Finding the Fourth Proportional to 674,386.99, 930,643.18 and 368,456.80
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Solution
The fourth proportional to 674,386.99, 930,643.18 and 368,456.80 is: 508,464.45
Step by Step Solution
- Step 1: Write the proportion equation
674,386.99 : 930,643.18 = 368,456.80 : x - Step 2: Convert to fraction form
674,386.99/930,643.18 = 368,456.80/x - Step 3: Cross multiply
674,386.99x = 930,643.18 × 368,456.80 - Step 4: Simplify right side
674,386.99x = 342,901,808,044.62 - Step 5: Solve for x
x = 342,901,808,044.62/674,386.99 - Step 6: Final answer
x = 508,464.45
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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.