Finding the Fourth Proportional to 936,439.08, 1,292,283.90 and 506,719.05
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Solution
The fourth proportional to 936,439.08, 1,292,283.90 and 506,719.05 is: 699,271.19
Step by Step Solution
- Step 1: Write the proportion equation
936,439.08 : 1,292,283.90 = 506,719.05 : x - Step 2: Convert to fraction form
936,439.08/1,292,283.90 = 506,719.05/x - Step 3: Cross multiply
936,439.08x = 1,292,283.90 × 506,719.05 - Step 4: Simplify right side
936,439.08x = 654,824,870,138.30 - Step 5: Solve for x
x = 654,824,870,138.30/936,439.08 - Step 6: Final answer
x = 699,271.19
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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.