Finding the Fourth Proportional to 938,277.77, 1,405,420.92 and 553,612.05
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Solution
The fourth proportional to 938,277.77, 1,405,420.92 and 553,612.05 is: 829,240.54
Step by Step Solution
- Step 1: Write the proportion equation
938,277.77 : 1,405,420.92 = 553,612.05 : x - Step 2: Convert to fraction form
938,277.77/1,405,420.92 = 553,612.05/x - Step 3: Cross multiply
938,277.77x = 1,405,420.92 × 553,612.05 - Step 4: Simplify right side
938,277.77x = 778,057,956,634.09 - Step 5: Solve for x
x = 778,057,956,634.09/938,277.77 - Step 6: Final answer
x = 829,240.54
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.