Finding the Fourth Proportional to 1,029,665.84, 1,419,363.74 and 722,881.58
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Solution
The fourth proportional to 1,029,665.84, 1,419,363.74 and 722,881.58 is: 996,470.76
Step by Step Solution
- Step 1: Write the proportion equation
1,029,665.84 : 1,419,363.74 = 722,881.58 : x - Step 2: Convert to fraction form
1,029,665.84/1,419,363.74 = 722,881.58/x - Step 3: Cross multiply
1,029,665.84x = 1,419,363.74 × 722,881.58 - Step 4: Simplify right side
1,029,665.84x = 1,026,031,902,965.91 - Step 5: Solve for x
x = 1,026,031,902,965.91/1,029,665.84 - Step 6: Final answer
x = 996,470.76
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.