Finding the Fourth Proportional to 955,782.74, 1,318,980.11 and 520,203.21
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Solution
The fourth proportional to 955,782.74, 1,318,980.11 and 520,203.21 is: 717,880.39
Step by Step Solution
- Step 1: Write the proportion equation
955,782.74 : 1,318,980.11 = 520,203.21 : x - Step 2: Convert to fraction form
955,782.74/1,318,980.11 = 520,203.21/x - Step 3: Cross multiply
955,782.74x = 1,318,980.11 × 520,203.21 - Step 4: Simplify right side
955,782.74x = 686,137,693,264.26 - Step 5: Solve for x
x = 686,137,693,264.26/955,782.74 - Step 6: Final answer
x = 717,880.39
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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.