Finding the Fourth Proportional to 907,498.97, 1,252,421.80 and 520,350.42
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Solution
The fourth proportional to 907,498.97, 1,252,421.80 and 520,350.42 is: 718,125.55
Step by Step Solution
- Step 1: Write the proportion equation
907,498.97 : 1,252,421.80 = 520,350.42 : x - Step 2: Convert to fraction form
907,498.97/1,252,421.80 = 520,350.42/x - Step 3: Cross multiply
907,498.97x = 1,252,421.80 × 520,350.42 - Step 4: Simplify right side
907,498.97x = 651,698,200,783.30 - Step 5: Solve for x
x = 651,698,200,783.30/907,498.97 - Step 6: Final answer
x = 718,125.55
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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.