Finding the Fourth Proportional to 909,695.38, 1,363,436.18 and 643,532.62
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Solution
The fourth proportional to 909,695.38, 1,363,436.18 and 643,532.62 is: 964,515.90
Step by Step Solution
- Step 1: Write the proportion equation
909,695.38 : 1,363,436.18 = 643,532.62 : x - Step 2: Convert to fraction form
909,695.38/1,363,436.18 = 643,532.62/x - Step 3: Cross multiply
909,695.38x = 1,363,436.18 × 643,532.62 - Step 4: Simplify right side
909,695.38x = 877,415,657,118.19 - Step 5: Solve for x
x = 877,415,657,118.19/909,695.38 - Step 6: Final answer
x = 964,515.90
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.