Finding the Fourth Proportional to 1,216,619.36, 1,678,376.67 and 787,038.02
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Solution
The fourth proportional to 1,216,619.36, 1,678,376.67 and 787,038.02 is: 1,085,751.46
Step by Step Solution
- Step 1: Write the proportion equation
1,216,619.36 : 1,678,376.67 = 787,038.02 : x - Step 2: Convert to fraction form
1,216,619.36/1,678,376.67 = 787,038.02/x - Step 3: Cross multiply
1,216,619.36x = 1,678,376.67 × 787,038.02 - Step 4: Simplify right side
1,216,619.36x = 1,320,946,251,170.99 - Step 5: Solve for x
x = 1,320,946,251,170.99/1,216,619.36 - Step 6: Final answer
x = 1,085,751.46
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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.