Finding the Fourth Proportional to 507,745.26, 700,659.95 and 278,258.81
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Solution
The fourth proportional to 507,745.26, 700,659.95 and 278,258.81 is: 383,981.52
Step by Step Solution
- Step 1: Write the proportion equation
507,745.26 : 700,659.95 = 278,258.81 : x - Step 2: Convert to fraction form
507,745.26/700,659.95 = 278,258.81/x - Step 3: Cross multiply
507,745.26x = 700,659.95 × 278,258.81 - Step 4: Simplify right side
507,745.26x = 194,964,799,007.07 - Step 5: Solve for x
x = 194,964,799,007.07/507,745.26 - Step 6: Final answer
x = 383,981.52
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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.