Finding the Fourth Proportional to 879,820.56, 1,214,177.94 and 497,839.14
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Solution
The fourth proportional to 879,820.56, 1,214,177.94 and 497,839.14 is: 687,032.48
Step by Step Solution
- Step 1: Write the proportion equation
879,820.56 : 1,214,177.94 = 497,839.14 : x - Step 2: Convert to fraction form
879,820.56/1,214,177.94 = 497,839.14/x - Step 3: Cross multiply
879,820.56x = 1,214,177.94 × 497,839.14 - Step 4: Simplify right side
879,820.56x = 604,465,301,456.57 - Step 5: Solve for x
x = 604,465,301,456.57/879,820.56 - Step 6: Final answer
x = 687,032.48
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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.