Finding the Fourth Proportional to 819,397.12, 1,130,772.72 and 456,844
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Solution
The fourth proportional to 819,397.12, 1,130,772.72 and 456,844 is: 630,447.34
Step by Step Solution
- Step 1: Write the proportion equation
819,397.12 : 1,130,772.72 = 456,844 : x - Step 2: Convert to fraction form
819,397.12/1,130,772.72 = 456,844/x - Step 3: Cross multiply
819,397.12x = 1,130,772.72 × 456,844 - Step 4: Simplify right side
819,397.12x = 516,586,732,495.68 - Step 5: Solve for x
x = 516,586,732,495.68/819,397.12 - Step 6: Final answer
x = 630,447.34
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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.