Finding the Fourth Proportional to 819,225.76, 1,130,745.36 and 533,529.76
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Solution
The fourth proportional to 819,225.76, 1,130,745.36 and 533,529.76 is: 736,410.32
Step by Step Solution
- Step 1: Write the proportion equation
819,225.76 : 1,130,745.36 = 533,529.76 : x - Step 2: Convert to fraction form
819,225.76/1,130,745.36 = 533,529.76/x - Step 3: Cross multiply
819,225.76x = 1,130,745.36 × 533,529.76 - Step 4: Simplify right side
819,225.76x = 603,286,300,541.91 - Step 5: Solve for x
x = 603,286,300,541.91/819,225.76 - Step 6: Final answer
x = 736,410.32
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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.