Finding the Fourth Proportional to 771,508.13, 1,064,435.18 and 499,784.31
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Solution
The fourth proportional to 771,508.13, 1,064,435.18 and 499,784.31 is: 689,542.96
Step by Step Solution
- Step 1: Write the proportion equation
771,508.13 : 1,064,435.18 = 499,784.31 : x - Step 2: Convert to fraction form
771,508.13/1,064,435.18 = 499,784.31/x - Step 3: Cross multiply
771,508.13x = 1,064,435.18 × 499,784.31 - Step 4: Simplify right side
771,508.13x = 531,987,999,477.10 - Step 5: Solve for x
x = 531,987,999,477.10/771,508.13 - Step 6: Final answer
x = 689,542.96
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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.