Finding the Fourth Proportional to 740,439.60, 1,021,042.92 and 633,364.08
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Solution
The fourth proportional to 740,439.60, 1,021,042.92 and 633,364.08 is: 873,389.15
Step by Step Solution
- Step 1: Write the proportion equation
740,439.60 : 1,021,042.92 = 633,364.08 : x - Step 2: Convert to fraction form
740,439.60/1,021,042.92 = 633,364.08/x - Step 3: Cross multiply
740,439.60x = 1,021,042.92 × 633,364.08 - Step 4: Simplify right side
740,439.60x = 646,691,909,666.31 - Step 5: Solve for x
x = 646,691,909,666.31/740,439.60 - Step 6: Final answer
x = 873,389.15
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1.5x scale
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.