Finding the Fourth Proportional to 790,630.74, 1,092,908.97 and 705,434.00
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Solution
The fourth proportional to 790,630.74, 1,092,908.97 and 705,434.00 is: 975,139.34
Step by Step Solution
- Step 1: Write the proportion equation
790,630.74 : 1,092,908.97 = 705,434.00 : x - Step 2: Convert to fraction form
790,630.74/1,092,908.97 = 705,434.00/x - Step 3: Cross multiply
790,630.74x = 1,092,908.97 × 705,434.00 - Step 4: Simplify right side
790,630.74x = 770,975,140,878.44 - Step 5: Solve for x
x = 770,975,140,878.44/790,630.74 - Step 6: Final answer
x = 975,139.34
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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.