Finding the Fourth Proportional to 1,228,457.39, 1,842,948.50 and 429,764.99
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Solution
The fourth proportional to 1,228,457.39, 1,842,948.50 and 429,764.99 is: 644,739.28
Step by Step Solution
- Step 1: Write the proportion equation
1,228,457.39 : 1,842,948.50 = 429,764.99 : x - Step 2: Convert to fraction form
1,228,457.39/1,842,948.50 = 429,764.99/x - Step 3: Cross multiply
1,228,457.39x = 1,842,948.50 × 429,764.99 - Step 4: Simplify right side
1,228,457.39x = 792,034,732,309.45 - Step 5: Solve for x
x = 792,034,732,309.45/1,228,457.39 - Step 6: Final answer
x = 644,739.28
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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.