Finding the Fourth Proportional to 528,258.24, 791,331.12 and 261,210.96
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Solution
The fourth proportional to 528,258.24, 791,331.12 and 261,210.96 is: 391,294.15
Step by Step Solution
- Step 1: Write the proportion equation
528,258.24 : 791,331.12 = 261,210.96 : x - Step 2: Convert to fraction form
528,258.24/791,331.12 = 261,210.96/x - Step 3: Cross multiply
528,258.24x = 791,331.12 × 261,210.96 - Step 4: Simplify right side
528,258.24x = 206,704,361,533.08 - Step 5: Solve for x
x = 206,704,361,533.08/528,258.24 - Step 6: Final answer
x = 391,294.15
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1.5x scale
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.