Finding the Fourth Proportional to 4,280,491.80, 6,420,663.72 and 1,440,603.99
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Solution
The fourth proportional to 4,280,491.80, 6,420,663.72 and 1,440,603.99 is: 2,160,881.09
Step by Step Solution
- Step 1: Write the proportion equation
4,280,491.80 : 6,420,663.72 = 1,440,603.99 : x - Step 2: Convert to fraction form
4,280,491.80/6,420,663.72 = 1,440,603.99/x - Step 3: Cross multiply
4,280,491.80x = 6,420,663.72 × 1,440,603.99 - Step 4: Simplify right side
4,280,491.80x = 9,249,633,773,480.24 - Step 5: Solve for x
x = 9,249,633,773,480.24/4,280,491.80 - Step 6: Final answer
x = 2,160,881.09
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1.5x scale
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.