Finding the Fourth Proportional to 820,919.68, 1,132,782.98 and 476,688.31
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Solution
The fourth proportional to 820,919.68, 1,132,782.98 and 476,688.31 is: 657,779.82
Step by Step Solution
- Step 1: Write the proportion equation
820,919.68 : 1,132,782.98 = 476,688.31 : x - Step 2: Convert to fraction form
820,919.68/1,132,782.98 = 476,688.31/x - Step 3: Cross multiply
820,919.68x = 1,132,782.98 × 476,688.31 - Step 4: Simplify right side
820,919.68x = 539,984,399,117.57 - Step 5: Solve for x
x = 539,984,399,117.57/820,919.68 - Step 6: Final answer
x = 657,779.82
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.