Finding the Fourth Proportional to 1,429,719.84, 2,143,949.99 and 671,776.92
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Solution
The fourth proportional to 1,429,719.84, 2,143,949.99 and 671,776.92 is: 1,007,369.47
Step by Step Solution
- Step 1: Write the proportion equation
1,429,719.84 : 2,143,949.99 = 671,776.92 : x - Step 2: Convert to fraction form
1,429,719.84/2,143,949.99 = 671,776.92/x - Step 3: Cross multiply
1,429,719.84x = 2,143,949.99 × 671,776.92 - Step 4: Simplify right side
1,429,719.84x = 1,440,256,117,557.35 - Step 5: Solve for x
x = 1,440,256,117,557.35/1,429,719.84 - Step 6: Final answer
x = 1,007,369.47
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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.