Finding the Fourth Proportional to 913,881, 1,258,902.36 and 777,478.08
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Solution
The fourth proportional to 913,881, 1,258,902.36 and 777,478.08 is: 1,071,002.67
Step by Step Solution
- Step 1: Write the proportion equation
913,881 : 1,258,902.36 = 777,478.08 : x - Step 2: Convert to fraction form
913,881/1,258,902.36 = 777,478.08/x - Step 3: Cross multiply
913,881x = 1,258,902.36 × 777,478.08 - Step 4: Simplify right side
913,881x = 978,768,989,760.27 - Step 5: Solve for x
x = 978,768,989,760.27/913,881 - Step 6: Final answer
x = 1,071,002.67
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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.