Finding the Fourth Proportional to 1,889,707.12, 2,607,793.99 and 1,030,267.15
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Solution
The fourth proportional to 1,889,707.12, 2,607,793.99 and 1,030,267.15 is: 1,421,767.66
Step by Step Solution
- Step 1: Write the proportion equation
1,889,707.12 : 2,607,793.99 = 1,030,267.15 : x - Step 2: Convert to fraction form
1,889,707.12/2,607,793.99 = 1,030,267.15/x - Step 3: Cross multiply
1,889,707.12x = 2,607,793.99 × 1,030,267.15 - Step 4: Simplify right side
1,889,707.12x = 2,686,724,472,769.28 - Step 5: Solve for x
x = 2,686,724,472,769.28/1,889,707.12 - Step 6: Final answer
x = 1,421,767.66
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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.