Finding the Fourth Proportional to 644,536.80, 966,805.20 and 549,151.20
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Solution
The fourth proportional to 644,536.80, 966,805.20 and 549,151.20 is: 823,726.80
Step by Step Solution
- Step 1: Write the proportion equation
644,536.80 : 966,805.20 = 549,151.20 : x - Step 2: Convert to fraction form
644,536.80/966,805.20 = 549,151.20/x - Step 3: Cross multiply
644,536.80x = 966,805.20 × 549,151.20 - Step 4: Simplify right side
644,536.80x = 530,922,235,746.24 - Step 5: Solve for x
x = 530,922,235,746.24/644,536.80 - Step 6: Final answer
x = 823,726.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.