Finding the Fourth Proportional to 943,107.42, 1,301,488.38 and 513,390.82
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Solution
The fourth proportional to 943,107.42, 1,301,488.38 and 513,390.82 is: 708,479.41
Step by Step Solution
- Step 1: Write the proportion equation
943,107.42 : 1,301,488.38 = 513,390.82 : x - Step 2: Convert to fraction form
943,107.42/1,301,488.38 = 513,390.82/x - Step 3: Cross multiply
943,107.42x = 1,301,488.38 × 513,390.82 - Step 4: Simplify right side
943,107.42x = 668,172,186,628.67 - Step 5: Solve for x
x = 668,172,186,628.67/943,107.42 - Step 6: Final answer
x = 708,479.41
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1.5x scale
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.