Finding the Fourth Proportional to 689,622.48, 1,034,451 and 190,990.80
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Solution
The fourth proportional to 689,622.48, 1,034,451 and 190,990.80 is: 286,490.99
Step by Step Solution
- Step 1: Write the proportion equation
689,622.48 : 1,034,451 = 190,990.80 : x - Step 2: Convert to fraction form
689,622.48/1,034,451 = 190,990.80/x - Step 3: Cross multiply
689,622.48x = 1,034,451 × 190,990.80 - Step 4: Simplify right side
689,622.48x = 197,570,624,050.80 - Step 5: Solve for x
x = 197,570,624,050.80/689,622.48 - Step 6: Final answer
x = 286,490.99
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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.