Finding the Fourth Proportional to 815,780.76, 1,125,809.04 and 558,197.65
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Solution
The fourth proportional to 815,780.76, 1,125,809.04 and 558,197.65 is: 770,334.37
Step by Step Solution
- Step 1: Write the proportion equation
815,780.76 : 1,125,809.04 = 558,197.65 : x - Step 2: Convert to fraction form
815,780.76/1,125,809.04 = 558,197.65/x - Step 3: Cross multiply
815,780.76x = 1,125,809.04 × 558,197.65 - Step 4: Simplify right side
815,780.76x = 628,423,960,476.76 - Step 5: Solve for x
x = 628,423,960,476.76/815,780.76 - Step 6: Final answer
x = 770,334.37
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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.