Finding the Fourth Proportional to 947,439.91, 1,307,470.54 and 517,720.09
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Solution
The fourth proportional to 947,439.91, 1,307,470.54 and 517,720.09 is: 714,455.62
Step by Step Solution
- Step 1: Write the proportion equation
947,439.91 : 1,307,470.54 = 517,720.09 : x - Step 2: Convert to fraction form
947,439.91/1,307,470.54 = 517,720.09/x - Step 3: Cross multiply
947,439.91x = 1,307,470.54 × 517,720.09 - Step 4: Simplify right side
947,439.91x = 676,903,765,641.15 - Step 5: Solve for x
x = 676,903,765,641.15/947,439.91 - Step 6: Final answer
x = 714,455.62
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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.