Finding the Fourth Proportional to 778,890.24, 1,169,331.84 and 661,308.66
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Solution
The fourth proportional to 778,890.24, 1,169,331.84 and 661,308.66 is: 992,809.04
Step by Step Solution
- Step 1: Write the proportion equation
778,890.24 : 1,169,331.84 = 661,308.66 : x - Step 2: Convert to fraction form
778,890.24/1,169,331.84 = 661,308.66/x - Step 3: Cross multiply
778,890.24x = 1,169,331.84 × 661,308.66 - Step 4: Simplify right side
778,890.24x = 773,289,272,205.74 - Step 5: Solve for x
x = 773,289,272,205.74/778,890.24 - Step 6: Final answer
x = 992,809.04
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.