Finding the Fourth Proportional to 750.63, 1,035.66 and 455.70
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Solution
The fourth proportional to 750.63, 1,035.66 and 455.70 is: 628.74
Step by Step Solution
- Step 1: Write the proportion equation
750.63 : 1,035.66 = 455.70 : x - Step 2: Convert to fraction form
750.63/1,035.66 = 455.70/x - Step 3: Cross multiply
750.63x = 1,035.66 × 455.70 - Step 4: Simplify right side
750.63x = 471,950.26 - Step 5: Solve for x
x = 471,950.26/750.63 - Step 6: Final answer
x = 628.74
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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.