Finding the Fourth Proportional to 1,228,456.16, 1,842,946.68 and 429,763.76
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Solution
The fourth proportional to 1,228,456.16, 1,842,946.68 and 429,763.76 is: 644,737.45
Step by Step Solution
- Step 1: Write the proportion equation
1,228,456.16 : 1,842,946.68 = 429,763.76 : x - Step 2: Convert to fraction form
1,228,456.16/1,842,946.68 = 429,763.76/x - Step 3: Cross multiply
1,228,456.16x = 1,842,946.68 × 429,763.76 - Step 4: Simplify right side
1,228,456.16x = 792,031,694,676.32 - Step 5: Solve for x
x = 792,031,694,676.32/1,228,456.16 - Step 6: Final answer
x = 644,737.45
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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.