Finding the Fourth Proportional to 828,840.28, 1,244,423.58 and 424,321.42
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Solution
The fourth proportional to 828,840.28, 1,244,423.58 and 424,321.42 is: 637,077.61
Step by Step Solution
- Step 1: Write the proportion equation
828,840.28 : 1,244,423.58 = 424,321.42 : x - Step 2: Convert to fraction form
828,840.28/1,244,423.58 = 424,321.42/x - Step 3: Cross multiply
828,840.28x = 1,244,423.58 × 424,321.42 - Step 4: Simplify right side
828,840.28x = 528,035,580,547.08 - Step 5: Solve for x
x = 528,035,580,547.08/828,840.28 - Step 6: Final answer
x = 637,077.61
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.