Finding the Fourth Proportional to 1,288,652.03, 1,778,282.24 and 772,690.71
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Solution
The fourth proportional to 1,288,652.03, 1,778,282.24 and 772,690.71 is: 1,066,278.66
Step by Step Solution
- Step 1: Write the proportion equation
1,288,652.03 : 1,778,282.24 = 772,690.71 : x - Step 2: Convert to fraction form
1,288,652.03/1,778,282.24 = 772,690.71/x - Step 3: Cross multiply
1,288,652.03x = 1,778,282.24 × 772,690.71 - Step 4: Simplify right side
1,288,652.03x = 1,374,062,162,742.54 - Step 5: Solve for x
x = 1,374,062,162,742.54/1,288,652.03 - Step 6: Final answer
x = 1,066,278.66
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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.