Finding the Fourth Proportional to 819,105.68, 1,130,431.56 and 456,646.88
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Solution
The fourth proportional to 819,105.68, 1,130,431.56 and 456,646.88 is: 630,209.33
Step by Step Solution
- Step 1: Write the proportion equation
819,105.68 : 1,130,431.56 = 456,646.88 : x - Step 2: Convert to fraction form
819,105.68/1,130,431.56 = 456,646.88/x - Step 3: Cross multiply
819,105.68x = 1,130,431.56 × 456,646.88 - Step 4: Simplify right side
819,105.68x = 516,208,044,927.53 - Step 5: Solve for x
x = 516,208,044,927.53/819,105.68 - Step 6: Final answer
x = 630,209.33
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1.5x scale
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.