Finding the Fourth Proportional to 780,179.18, 1,170,492.93 and 324,681.75
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Solution
The fourth proportional to 780,179.18, 1,170,492.93 and 324,681.75 is: 487,115.92
Step by Step Solution
- Step 1: Write the proportion equation
780,179.18 : 1,170,492.93 = 324,681.75 : x - Step 2: Convert to fraction form
780,179.18/1,170,492.93 = 324,681.75/x - Step 3: Cross multiply
780,179.18x = 1,170,492.93 × 324,681.75 - Step 4: Simplify right side
780,179.18x = 380,037,692,875.03 - Step 5: Solve for x
x = 380,037,692,875.03/780,179.18 - Step 6: Final answer
x = 487,115.92
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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.