Finding the Fourth Proportional to 575,621.80, 863,432.70 and 435,653.80
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Solution
The fourth proportional to 575,621.80, 863,432.70 and 435,653.80 is: 653,480.70
Step by Step Solution
- Step 1: Write the proportion equation
575,621.80 : 863,432.70 = 435,653.80 : x - Step 2: Convert to fraction form
575,621.80/863,432.70 = 435,653.80/x - Step 3: Cross multiply
575,621.80x = 863,432.70 × 435,653.80 - Step 4: Simplify right side
575,621.80x = 376,157,736,799.26 - Step 5: Solve for x
x = 376,157,736,799.26/575,621.80 - Step 6: Final answer
x = 653,480.70
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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.