Finding the Fourth Proportional to 950,462.18, 1,311,471.09 and 542,377.70
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Solution
The fourth proportional to 950,462.18, 1,311,471.09 and 542,377.70 is: 748,386.09
Step by Step Solution
- Step 1: Write the proportion equation
950,462.18 : 1,311,471.09 = 542,377.70 : x - Step 2: Convert to fraction form
950,462.18/1,311,471.09 = 542,377.70/x - Step 3: Cross multiply
950,462.18x = 1,311,471.09 × 542,377.70 - Step 4: Simplify right side
950,462.18x = 711,312,673,410.69 - Step 5: Solve for x
x = 711,312,673,410.69/950,462.18 - Step 6: Final answer
x = 748,386.09
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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.