Finding the Fourth Proportional to 539,129.40, 807,011.26 and 397,134.76
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Solution
The fourth proportional to 539,129.40, 807,011.26 and 397,134.76 is: 594,462.52
Step by Step Solution
- Step 1: Write the proportion equation
539,129.40 : 807,011.26 = 397,134.76 : x - Step 2: Convert to fraction form
539,129.40/807,011.26 = 397,134.76/x - Step 3: Cross multiply
539,129.40x = 807,011.26 × 397,134.76 - Step 4: Simplify right side
539,129.40x = 320,492,223,057.40 - Step 5: Solve for x
x = 320,492,223,057.40/539,129.40 - Step 6: Final answer
x = 594,462.52
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.