Finding the Fourth Proportional to 620,202.70, 930,304.05 and 611,908.30
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Solution
The fourth proportional to 620,202.70, 930,304.05 and 611,908.30 is: 917,862.45
Step by Step Solution
- Step 1: Write the proportion equation
620,202.70 : 930,304.05 = 611,908.30 : x - Step 2: Convert to fraction form
620,202.70/930,304.05 = 611,908.30/x - Step 3: Cross multiply
620,202.70x = 930,304.05 × 611,908.30 - Step 4: Simplify right side
620,202.70x = 569,260,769,718.62 - Step 5: Solve for x
x = 569,260,769,718.62/620,202.70 - Step 6: Final answer
x = 917,862.45
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1.5x scale
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.