Finding the Fourth Proportional to 823,487.64, 1,235,331.09 and 290,899.68
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Solution
The fourth proportional to 823,487.64, 1,235,331.09 and 290,899.68 is: 436,384.71
Step by Step Solution
- Step 1: Write the proportion equation
823,487.64 : 1,235,331.09 = 290,899.68 : x - Step 2: Convert to fraction form
823,487.64/1,235,331.09 = 290,899.68/x - Step 3: Cross multiply
823,487.64x = 1,235,331.09 × 290,899.68 - Step 4: Simplify right side
823,487.64x = 359,357,418,775.05 - Step 5: Solve for x
x = 359,357,418,775.05/823,487.64 - Step 6: Final answer
x = 436,384.71
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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.