Finding the Fourth Proportional to 645,329.09, 890,542.94 and 358,843.02
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Solution
The fourth proportional to 645,329.09, 890,542.94 and 358,843.02 is: 495,197.14
Step by Step Solution
- Step 1: Write the proportion equation
645,329.09 : 890,542.94 = 358,843.02 : x - Step 2: Convert to fraction form
645,329.09/890,542.94 = 358,843.02/x - Step 3: Cross multiply
645,329.09x = 890,542.94 × 358,843.02 - Step 4: Simplify right side
645,329.09x = 319,565,116,235.06 - Step 5: Solve for x
x = 319,565,116,235.06/645,329.09 - Step 6: Final answer
x = 495,197.14
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.