Finding the Fourth Proportional to 988,021.14, 1,363,451.40 and 558,291.98
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Solution
The fourth proportional to 988,021.14, 1,363,451.40 and 558,291.98 is: 770,432.89
Step by Step Solution
- Step 1: Write the proportion equation
988,021.14 : 1,363,451.40 = 558,291.98 : x - Step 2: Convert to fraction form
988,021.14/1,363,451.40 = 558,291.98/x - Step 3: Cross multiply
988,021.14x = 1,363,451.40 × 558,291.98 - Step 4: Simplify right side
988,021.14x = 761,203,981,739.77 - Step 5: Solve for x
x = 761,203,981,739.77/988,021.14 - Step 6: Final answer
x = 770,432.89
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.