Finding the Fourth Proportional to 676,878.11, 934,117.68 and 386,537.06
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Solution
The fourth proportional to 676,878.11, 934,117.68 and 386,537.06 is: 533,435.92
Step by Step Solution
- Step 1: Write the proportion equation
676,878.11 : 934,117.68 = 386,537.06 : x - Step 2: Convert to fraction form
676,878.11/934,117.68 = 386,537.06/x - Step 3: Cross multiply
676,878.11x = 934,117.68 × 386,537.06 - Step 4: Simplify right side
676,878.11x = 361,071,097,050.63 - Step 5: Solve for x
x = 361,071,097,050.63/676,878.11 - Step 6: Final answer
x = 533,435.92
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.