Finding the Fourth Proportional to 943,228.05, 1,301,613.87 and 513,509.68
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Solution
The fourth proportional to 943,228.05, 1,301,613.87 and 513,509.68 is: 708,621.12
Step by Step Solution
- Step 1: Write the proportion equation
943,228.05 : 1,301,613.87 = 513,509.68 : x - Step 2: Convert to fraction form
943,228.05/1,301,613.87 = 513,509.68/x - Step 3: Cross multiply
943,228.05x = 1,301,613.87 × 513,509.68 - Step 4: Simplify right side
943,228.05x = 668,391,321,867.26 - Step 5: Solve for x
x = 668,391,321,867.26/943,228.05 - Step 6: Final answer
x = 708,621.12
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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.