Finding the Fourth Proportional to 1,621,926.99, 2,429,346.74 and 821,834.91
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Solution
The fourth proportional to 1,621,926.99, 2,429,346.74 and 821,834.91 is: 1,230,956.74
Step by Step Solution
- Step 1: Write the proportion equation
1,621,926.99 : 2,429,346.74 = 821,834.91 : x - Step 2: Convert to fraction form
1,621,926.99/2,429,346.74 = 821,834.91/x - Step 3: Cross multiply
1,621,926.99x = 2,429,346.74 × 821,834.91 - Step 4: Simplify right side
1,621,926.99x = 1,996,521,955,317.52 - Step 5: Solve for x
x = 1,996,521,955,317.52/1,621,926.99 - Step 6: Final answer
x = 1,230,956.74
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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.