Finding the Fourth Proportional to 935,920.68, 1,291,570.74 and 528,109.08
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Solution
The fourth proportional to 935,920.68, 1,291,570.74 and 528,109.08 is: 728,790.64
Step by Step Solution
- Step 1: Write the proportion equation
935,920.68 : 1,291,570.74 = 528,109.08 : x - Step 2: Convert to fraction form
935,920.68/1,291,570.74 = 528,109.08/x - Step 3: Cross multiply
935,920.68x = 1,291,570.74 × 528,109.08 - Step 4: Simplify right side
935,920.68x = 682,090,235,256.32 - Step 5: Solve for x
x = 682,090,235,256.32/935,920.68 - Step 6: Final answer
x = 728,790.64
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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.