Finding the Fourth Proportional to 750,660.71, 1,035,985.90 and 428,418.95
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Solution
The fourth proportional to 750,660.71, 1,035,985.90 and 428,418.95 is: 591,260.45
Step by Step Solution
- Step 1: Write the proportion equation
750,660.71 : 1,035,985.90 = 428,418.95 : x - Step 2: Convert to fraction form
750,660.71/1,035,985.90 = 428,418.95/x - Step 3: Cross multiply
750,660.71x = 1,035,985.90 × 428,418.95 - Step 4: Simplify right side
750,660.71x = 443,835,991,492.81 - Step 5: Solve for x
x = 443,835,991,492.81/750,660.71 - Step 6: Final answer
x = 591,260.45
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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.