Finding the Fourth Proportional to 785,321.16, 1,178,041.43 and 305,342.75
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Solution
The fourth proportional to 785,321.16, 1,178,041.43 and 305,342.75 is: 458,037.32
Step by Step Solution
- Step 1: Write the proportion equation
785,321.16 : 1,178,041.43 = 305,342.75 : x - Step 2: Convert to fraction form
785,321.16/1,178,041.43 = 305,342.75/x - Step 3: Cross multiply
785,321.16x = 1,178,041.43 × 305,342.75 - Step 4: Simplify right side
785,321.16x = 359,706,402,433.21 - Step 5: Solve for x
x = 359,706,402,433.21/785,321.16 - Step 6: Final answer
x = 458,037.32
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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.