Finding the Fourth Proportional to 870,366.42, 1,201,127.49 and 488,423.70
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Solution
The fourth proportional to 870,366.42, 1,201,127.49 and 488,423.70 is: 674,036.96
Step by Step Solution
- Step 1: Write the proportion equation
870,366.42 : 1,201,127.49 = 488,423.70 : x - Step 2: Convert to fraction form
870,366.42/1,201,127.49 = 488,423.70/x - Step 3: Cross multiply
870,366.42x = 1,201,127.49 × 488,423.70 - Step 4: Simplify right side
870,366.42x = 586,659,132,837.51 - Step 5: Solve for x
x = 586,659,132,837.51/870,366.42 - Step 6: Final answer
x = 674,036.96
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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.