Finding the Fourth Proportional to 992,919.08, 1,370,118.69 and 557,236.50
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Solution
The fourth proportional to 992,919.08, 1,370,118.69 and 557,236.50 is: 768,924.83
Step by Step Solution
- Step 1: Write the proportion equation
992,919.08 : 1,370,118.69 = 557,236.50 : x - Step 2: Convert to fraction form
992,919.08/1,370,118.69 = 557,236.50/x - Step 3: Cross multiply
992,919.08x = 1,370,118.69 × 557,236.50 - Step 4: Simplify right side
992,919.08x = 763,480,133,763.41 - Step 5: Solve for x
x = 763,480,133,763.41/992,919.08 - Step 6: Final answer
x = 768,924.83
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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.