Finding the Fourth Proportional to 779,312.40, 1,071,322.73 and 670,014.09
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Solution
The fourth proportional to 779,312.40, 1,071,322.73 and 670,014.09 is: 921,070.07
Step by Step Solution
- Step 1: Write the proportion equation
779,312.40 : 1,071,322.73 = 670,014.09 : x - Step 2: Convert to fraction form
779,312.40/1,071,322.73 = 670,014.09/x - Step 3: Cross multiply
779,312.40x = 1,071,322.73 × 670,014.09 - Step 4: Simplify right side
779,312.40x = 717,801,324,037.27 - Step 5: Solve for x
x = 717,801,324,037.27/779,312.40 - Step 6: Final answer
x = 921,070.07
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.