Finding the Fourth Proportional to 1,438,497.02, 2,156,029.58 and 668,955.92
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Solution
The fourth proportional to 1,438,497.02, 2,156,029.58 and 668,955.92 is: 1,002,635.89
Step by Step Solution
- Step 1: Write the proportion equation
1,438,497.02 : 2,156,029.58 = 668,955.92 : x - Step 2: Convert to fraction form
1,438,497.02/2,156,029.58 = 668,955.92/x - Step 3: Cross multiply
1,438,497.02x = 2,156,029.58 × 668,955.92 - Step 4: Simplify right side
1,438,497.02x = 1,442,288,742,128.36 - Step 5: Solve for x
x = 1,442,288,742,128.36/1,438,497.02 - Step 6: Final answer
x = 1,002,635.89
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.