Finding the Fourth Proportional to 782,424.92, 1,079,671.74 and 621,669.08
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Solution
The fourth proportional to 782,424.92, 1,079,671.74 and 621,669.08 is: 857,844.02
Step by Step Solution
- Step 1: Write the proportion equation
782,424.92 : 1,079,671.74 = 621,669.08 : x - Step 2: Convert to fraction form
782,424.92/1,079,671.74 = 621,669.08/x - Step 3: Cross multiply
782,424.92x = 1,079,671.74 × 621,669.08 - Step 4: Simplify right side
782,424.92x = 671,198,537,307.80 - Step 5: Solve for x
x = 671,198,537,307.80/782,424.92 - Step 6: Final answer
x = 857,844.02
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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.