Finding the Fourth Proportional to 709,473.98, 979,094.84 and 387,204.76
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Solution
The fourth proportional to 709,473.98, 979,094.84 and 387,204.76 is: 534,353.89
Step by Step Solution
- Step 1: Write the proportion equation
709,473.98 : 979,094.84 = 387,204.76 : x - Step 2: Convert to fraction form
709,473.98/979,094.84 = 387,204.76/x - Step 3: Cross multiply
709,473.98x = 979,094.84 × 387,204.76 - Step 4: Simplify right side
709,473.98x = 379,110,182,539.44 - Step 5: Solve for x
x = 379,110,182,539.44/709,473.98 - Step 6: Final answer
x = 534,353.89
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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.