Finding the Fourth Proportional to 817,539.12, 1,225,863.90 and 284,917.14
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Solution
The fourth proportional to 817,539.12, 1,225,863.90 and 284,917.14 is: 427,220.70
Step by Step Solution
- Step 1: Write the proportion equation
817,539.12 : 1,225,863.90 = 284,917.14 : x - Step 2: Convert to fraction form
817,539.12/1,225,863.90 = 284,917.14/x - Step 3: Cross multiply
817,539.12x = 1,225,863.90 × 284,917.14 - Step 4: Simplify right side
817,539.12x = 349,269,636,417.25 - Step 5: Solve for x
x = 349,269,636,417.25/817,539.12 - Step 6: Final answer
x = 427,220.70
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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.