Finding the Fourth Proportional to 688,137.15, 1,032,205.86 and 214,863.06
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Solution
The fourth proportional to 688,137.15, 1,032,205.86 and 214,863.06 is: 322,294.63
Step by Step Solution
- Step 1: Write the proportion equation
688,137.15 : 1,032,205.86 = 214,863.06 : x - Step 2: Convert to fraction form
688,137.15/1,032,205.86 = 214,863.06/x - Step 3: Cross multiply
688,137.15x = 1,032,205.86 × 214,863.06 - Step 4: Simplify right side
688,137.15x = 221,782,909,629.53 - Step 5: Solve for x
x = 221,782,909,629.53/688,137.15 - Step 6: Final answer
x = 322,294.63
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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.