Finding the Fourth Proportional to 1,108,830.12, 1,663,424.70 and 434,545.80
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Solution
The fourth proportional to 1,108,830.12, 1,663,424.70 and 434,545.80 is: 651,889.05
Step by Step Solution
- Step 1: Write the proportion equation
1,108,830.12 : 1,663,424.70 = 434,545.80 : x - Step 2: Convert to fraction form
1,108,830.12/1,663,424.70 = 434,545.80/x - Step 3: Cross multiply
1,108,830.12x = 1,663,424.70 × 434,545.80 - Step 4: Simplify right side
1,108,830.12x = 722,834,217,001.26 - Step 5: Solve for x
x = 722,834,217,001.26/1,108,830.12 - Step 6: Final answer
x = 651,889.05
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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.