Finding the Fourth Proportional to 709,142.44, 1,058,182.69 and 632,715.58
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Solution
The fourth proportional to 709,142.44, 1,058,182.69 and 632,715.58 is: 944,138.49
Step by Step Solution
- Step 1: Write the proportion equation
709,142.44 : 1,058,182.69 = 632,715.58 : x - Step 2: Convert to fraction form
709,142.44/1,058,182.69 = 632,715.58/x - Step 3: Cross multiply
709,142.44x = 1,058,182.69 × 632,715.58 - Step 4: Simplify right side
709,142.44x = 669,528,674,449.31 - Step 5: Solve for x
x = 669,528,674,449.31/709,142.44 - Step 6: Final answer
x = 944,138.49
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.