Finding the Fourth Proportional to 778,722.45, 1,169,079.97 and 661,140.82
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Solution
The fourth proportional to 778,722.45, 1,169,079.97 and 661,140.82 is: 992,557.09
Step by Step Solution
- Step 1: Write the proportion equation
778,722.45 : 1,169,079.97 = 661,140.82 : x - Step 2: Convert to fraction form
778,722.45/1,169,079.97 = 661,140.82/x - Step 3: Cross multiply
778,722.45x = 1,169,079.97 × 661,140.82 - Step 4: Simplify right side
778,722.45x = 772,926,490,011.38 - Step 5: Solve for x
x = 772,926,490,011.38/778,722.45 - Step 6: Final answer
x = 992,557.09
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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.