Finding the Fourth Proportional to 621,979.94, 858,117.52 and 377,043.23
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Solution
The fourth proportional to 621,979.94, 858,117.52 and 377,043.23 is: 520,189.45
Step by Step Solution
- Step 1: Write the proportion equation
621,979.94 : 858,117.52 = 377,043.23 : x - Step 2: Convert to fraction form
621,979.94/858,117.52 = 377,043.23/x - Step 3: Cross multiply
621,979.94x = 858,117.52 × 377,043.23 - Step 4: Simplify right side
621,979.94x = 323,547,402,663.08 - Step 5: Solve for x
x = 323,547,402,663.08/621,979.94 - Step 6: Final answer
x = 520,189.45
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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.