Finding the Fourth Proportional to 808,673.86, 1,115,260.95 and 647,470.09
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Solution
The fourth proportional to 808,673.86, 1,115,260.95 and 647,470.09 is: 892,941.08
Step by Step Solution
- Step 1: Write the proportion equation
808,673.86 : 1,115,260.95 = 647,470.09 : x - Step 2: Convert to fraction form
808,673.86/1,115,260.95 = 647,470.09/x - Step 3: Cross multiply
808,673.86x = 1,115,260.95 × 647,470.09 - Step 4: Simplify right side
808,673.86x = 722,098,107,669.99 - Step 5: Solve for x
x = 722,098,107,669.99/808,673.86 - Step 6: Final answer
x = 892,941.08
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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.