Finding the Fourth Proportional to 821,247.12, 1,133,308.80 and 458,677.08
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Solution
The fourth proportional to 821,247.12, 1,133,308.80 and 458,677.08 is: 632,967.54
Step by Step Solution
- Step 1: Write the proportion equation
821,247.12 : 1,133,308.80 = 458,677.08 : x - Step 2: Convert to fraction form
821,247.12/1,133,308.80 = 458,677.08/x - Step 3: Cross multiply
821,247.12x = 1,133,308.80 × 458,677.08 - Step 4: Simplify right side
821,247.12x = 519,822,771,122.30 - Step 5: Solve for x
x = 519,822,771,122.30/821,247.12 - Step 6: Final answer
x = 632,967.54
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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.