Finding the Fourth Proportional to 785,438.08, 1,178,224.74 and 216,819.28
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Solution
The fourth proportional to 785,438.08, 1,178,224.74 and 216,819.28 is: 325,247.59
Step by Step Solution
- Step 1: Write the proportion equation
785,438.08 : 1,178,224.74 = 216,819.28 : x - Step 2: Convert to fraction form
785,438.08/1,178,224.74 = 216,819.28/x - Step 3: Cross multiply
785,438.08x = 1,178,224.74 × 216,819.28 - Step 4: Simplify right side
785,438.08x = 255,461,839,804.99 - Step 5: Solve for x
x = 255,461,839,804.99/785,438.08 - Step 6: Final answer
x = 325,247.59
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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.