Finding the Fourth Proportional to 819,472.68, 1,130,789.88 and 456,862.68
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Solution
The fourth proportional to 819,472.68, 1,130,789.88 and 456,862.68 is: 630,424.55
Step by Step Solution
- Step 1: Write the proportion equation
819,472.68 : 1,130,789.88 = 456,862.68 : x - Step 2: Convert to fraction form
819,472.68/1,130,789.88 = 456,862.68/x - Step 3: Cross multiply
819,472.68x = 1,130,789.88 × 456,862.68 - Step 4: Simplify right side
819,472.68x = 516,615,695,093.68 - Step 5: Solve for x
x = 516,615,695,093.68/819,472.68 - Step 6: Final answer
x = 630,424.55
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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.