Finding the Fourth Proportional to 505,689.12, 697,871.16 and 290,829.06
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Solution
The fourth proportional to 505,689.12, 697,871.16 and 290,829.06 is: 401,355.71
Step by Step Solution
- Step 1: Write the proportion equation
505,689.12 : 697,871.16 = 290,829.06 : x - Step 2: Convert to fraction form
505,689.12/697,871.16 = 290,829.06/x - Step 3: Cross multiply
505,689.12x = 697,871.16 × 290,829.06 - Step 4: Simplify right side
505,689.12x = 202,961,213,463.91 - Step 5: Solve for x
x = 202,961,213,463.91/505,689.12 - Step 6: Final answer
x = 401,355.71
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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.