Finding the Fourth Proportional to 1,289,403.33, 1,934,119.58 and 390,837.93
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Solution
The fourth proportional to 1,289,403.33, 1,934,119.58 and 390,837.93 is: 586,261.31
Step by Step Solution
- Step 1: Write the proportion equation
1,289,403.33 : 1,934,119.58 = 390,837.93 : x - Step 2: Convert to fraction form
1,289,403.33/1,934,119.58 = 390,837.93/x - Step 3: Cross multiply
1,289,403.33x = 1,934,119.58 × 390,837.93 - Step 4: Simplify right side
1,289,403.33x = 755,927,291,065.48 - Step 5: Solve for x
x = 755,927,291,065.48/1,289,403.33 - Step 6: Final answer
x = 586,261.31
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.