Finding the Fourth Proportional to 828,512.74, 1,143,652.65 and 727,612.90
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Solution
The fourth proportional to 828,512.74, 1,143,652.65 and 727,612.90 is: 1,004,373.72
Step by Step Solution
- Step 1: Write the proportion equation
828,512.74 : 1,143,652.65 = 727,612.90 : x - Step 2: Convert to fraction form
828,512.74/1,143,652.65 = 727,612.90/x - Step 3: Cross multiply
828,512.74x = 1,143,652.65 × 727,612.90 - Step 4: Simplify right side
828,512.74x = 832,136,421,259.19 - Step 5: Solve for x
x = 832,136,421,259.19/828,512.74 - Step 6: Final answer
x = 1,004,373.72
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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.