Finding the Fourth Proportional to 785,642.97, 1,178,532.36 and 217,023.90
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Solution
The fourth proportional to 785,642.97, 1,178,532.36 and 217,023.90 is: 325,554.61
Step by Step Solution
- Step 1: Write the proportion equation
785,642.97 : 1,178,532.36 = 217,023.90 : x - Step 2: Convert to fraction form
785,642.97/1,178,532.36 = 217,023.90/x - Step 3: Cross multiply
785,642.97x = 1,178,532.36 × 217,023.90 - Step 4: Simplify right side
785,642.97x = 255,769,689,043.40 - Step 5: Solve for x
x = 255,769,689,043.40/785,642.97 - Step 6: Final answer
x = 325,554.61
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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.