Finding the Fourth Proportional to 432,919.30, 649,378.95 and 291,201.70
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Solution
The fourth proportional to 432,919.30, 649,378.95 and 291,201.70 is: 436,802.55
Step by Step Solution
- Step 1: Write the proportion equation
432,919.30 : 649,378.95 = 291,201.70 : x - Step 2: Convert to fraction form
432,919.30/649,378.95 = 291,201.70/x - Step 3: Cross multiply
432,919.30x = 649,378.95 × 291,201.70 - Step 4: Simplify right side
432,919.30x = 189,100,254,184.22 - Step 5: Solve for x
x = 189,100,254,184.22/432,919.30 - Step 6: Final answer
x = 436,802.55
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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.