Finding the Fourth Proportional to 1,222,303.64, 1,686,746.76 and 678,438.08
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Solution
The fourth proportional to 1,222,303.64, 1,686,746.76 and 678,438.08 is: 936,226.64
Step by Step Solution
- Step 1: Write the proportion equation
1,222,303.64 : 1,686,746.76 = 678,438.08 : x - Step 2: Convert to fraction form
1,222,303.64/1,686,746.76 = 678,438.08/x - Step 3: Cross multiply
1,222,303.64x = 1,686,746.76 × 678,438.08 - Step 4: Simplify right side
1,222,303.64x = 1,144,353,233,300.62 - Step 5: Solve for x
x = 1,144,353,233,300.62/1,222,303.64 - Step 6: Final answer
x = 936,226.64
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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.