Finding the Fourth Proportional to 989,467.80, 1,484,263.20 and 358,387.08
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Solution
The fourth proportional to 989,467.80, 1,484,263.20 and 358,387.08 is: 537,602.90
Step by Step Solution
- Step 1: Write the proportion equation
989,467.80 : 1,484,263.20 = 358,387.08 : x - Step 2: Convert to fraction form
989,467.80/1,484,263.20 = 358,387.08/x - Step 3: Cross multiply
989,467.80x = 1,484,263.20 × 358,387.08 - Step 4: Simplify right side
989,467.80x = 531,940,754,199.46 - Step 5: Solve for x
x = 531,940,754,199.46/989,467.80 - Step 6: Final answer
x = 537,602.90
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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.