Finding the Fourth Proportional to 3,709,419.90, 5,564,507.04 and 1,280,256.99
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Solution
The fourth proportional to 3,709,419.90, 5,564,507.04 and 1,280,256.99 is: 1,920,515.67
Step by Step Solution
- Step 1: Write the proportion equation
3,709,419.90 : 5,564,507.04 = 1,280,256.99 : x - Step 2: Convert to fraction form
3,709,419.90/5,564,507.04 = 1,280,256.99/x - Step 3: Cross multiply
3,709,419.90x = 5,564,507.04 × 1,280,256.99 - Step 4: Simplify right side
3,709,419.90x = 7,123,999,033,864.21 - Step 5: Solve for x
x = 7,123,999,033,864.21/3,709,419.90 - Step 6: Final answer
x = 1,920,515.67
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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.