Finding the Fourth Proportional to 1,408,246.70, 2,112,370.05 and 698,384.30
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Solution
The fourth proportional to 1,408,246.70, 2,112,370.05 and 698,384.30 is: 1,047,576.45
Step by Step Solution
- Step 1: Write the proportion equation
1,408,246.70 : 2,112,370.05 = 698,384.30 : x - Step 2: Convert to fraction form
1,408,246.70/2,112,370.05 = 698,384.30/x - Step 3: Cross multiply
1,408,246.70x = 2,112,370.05 × 698,384.30 - Step 4: Simplify right side
1,408,246.70x = 1,475,246,078,710.22 - Step 5: Solve for x
x = 1,475,246,078,710.22/1,408,246.70 - Step 6: Final answer
x = 1,047,576.45
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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.