Finding the Fourth Proportional to 985,909.80, 1,478,864.70 and 653,485.80
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Solution
The fourth proportional to 985,909.80, 1,478,864.70 and 653,485.80 is: 980,228.70
Step by Step Solution
- Step 1: Write the proportion equation
985,909.80 : 1,478,864.70 = 653,485.80 : x - Step 2: Convert to fraction form
985,909.80/1,478,864.70 = 653,485.80/x - Step 3: Cross multiply
985,909.80x = 1,478,864.70 × 653,485.80 - Step 4: Simplify right side
985,909.80x = 966,417,081,571.26 - Step 5: Solve for x
x = 966,417,081,571.26/985,909.80 - Step 6: Final answer
x = 980,228.70
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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.