Finding the Fourth Proportional to 926,318.57, 1,278,375.95 and 518,412.08
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Solution
The fourth proportional to 926,318.57, 1,278,375.95 and 518,412.08 is: 715,440.20
Step by Step Solution
- Step 1: Write the proportion equation
926,318.57 : 1,278,375.95 = 518,412.08 : x - Step 2: Convert to fraction form
926,318.57/1,278,375.95 = 518,412.08/x - Step 3: Cross multiply
926,318.57x = 1,278,375.95 × 518,412.08 - Step 4: Simplify right side
926,318.57x = 662,725,539,753.45 - Step 5: Solve for x
x = 662,725,539,753.45/926,318.57 - Step 6: Final answer
x = 715,440.20
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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.