Finding the Fourth Proportional to 913,908.14, 1,261,232.63 and 506,009.96
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Solution
The fourth proportional to 913,908.14, 1,261,232.63 and 506,009.96 is: 698,315.55
Step by Step Solution
- Step 1: Write the proportion equation
913,908.14 : 1,261,232.63 = 506,009.96 : x - Step 2: Convert to fraction form
913,908.14/1,261,232.63 = 506,009.96/x - Step 3: Cross multiply
913,908.14x = 1,261,232.63 × 506,009.96 - Step 4: Simplify right side
913,908.14x = 638,196,263,820.78 - Step 5: Solve for x
x = 638,196,263,820.78/913,908.14 - Step 6: Final answer
x = 698,315.55
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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.