Finding the Fourth Proportional to 989,473.80, 1,484,272.20 and 358,393.08
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Solution
The fourth proportional to 989,473.80, 1,484,272.20 and 358,393.08 is: 537,611.90
Step by Step Solution
- Step 1: Write the proportion equation
989,473.80 : 1,484,272.20 = 358,393.08 : x - Step 2: Convert to fraction form
989,473.80/1,484,272.20 = 358,393.08/x - Step 3: Cross multiply
989,473.80x = 1,484,272.20 × 358,393.08 - Step 4: Simplify right side
989,473.80x = 531,952,885,316.38 - Step 5: Solve for x
x = 531,952,885,316.38/989,473.80 - Step 6: Final answer
x = 537,611.90
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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.