Finding the Fourth Proportional to 1,001,044.79, 1,381,440.59 and 542,159.09
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Solution
The fourth proportional to 1,001,044.79, 1,381,440.59 and 542,159.09 is: 748,178.88
Step by Step Solution
- Step 1: Write the proportion equation
1,001,044.79 : 1,381,440.59 = 542,159.09 : x - Step 2: Convert to fraction form
1,001,044.79/1,381,440.59 = 542,159.09/x - Step 3: Cross multiply
1,001,044.79x = 1,381,440.59 × 542,159.09 - Step 4: Simplify right side
1,001,044.79x = 748,960,563,545.47 - Step 5: Solve for x
x = 748,960,563,545.47/1,001,044.79 - Step 6: Final answer
x = 748,178.88
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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.