Finding the Fourth Proportional to 971,979.57, 1,341,305.82 and 542,248.65
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Solution
The fourth proportional to 971,979.57, 1,341,305.82 and 542,248.65 is: 748,288.64
Step by Step Solution
- Step 1: Write the proportion equation
971,979.57 : 1,341,305.82 = 542,248.65 : x - Step 2: Convert to fraction form
971,979.57/1,341,305.82 = 542,248.65/x - Step 3: Cross multiply
971,979.57x = 1,341,305.82 × 542,248.65 - Step 4: Simplify right side
971,979.57x = 727,321,270,132.14 - Step 5: Solve for x
x = 727,321,270,132.14/971,979.57 - Step 6: Final answer
x = 748,288.64
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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.