Finding the Fourth Proportional to 747,309.36, 1,031,311.80 and 407,796.24
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Solution
The fourth proportional to 747,309.36, 1,031,311.80 and 407,796.24 is: 562,772.39
Step by Step Solution
- Step 1: Write the proportion equation
747,309.36 : 1,031,311.80 = 407,796.24 : x - Step 2: Convert to fraction form
747,309.36/1,031,311.80 = 407,796.24/x - Step 3: Cross multiply
747,309.36x = 1,031,311.80 × 407,796.24 - Step 4: Simplify right side
747,309.36x = 420,565,074,307.63 - Step 5: Solve for x
x = 420,565,074,307.63/747,309.36 - Step 6: Final answer
x = 562,772.39
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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.