Finding the Fourth Proportional to 1,698,990.96, 2,344,660.68 and 963,976.20
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Solution
The fourth proportional to 1,698,990.96, 2,344,660.68 and 963,976.20 is: 1,330,317.32
Step by Step Solution
- Step 1: Write the proportion equation
1,698,990.96 : 2,344,660.68 = 963,976.20 : x - Step 2: Convert to fraction form
1,698,990.96/2,344,660.68 = 963,976.20/x - Step 3: Cross multiply
1,698,990.96x = 2,344,660.68 × 963,976.20 - Step 4: Simplify right side
1,698,990.96x = 2,260,197,092,595.82 - Step 5: Solve for x
x = 2,260,197,092,595.82/1,698,990.96 - Step 6: Final answer
x = 1,330,317.32
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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.