Finding the Fourth Proportional to 1,029,518.92, 1,420,764.44 and 564,398.70
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Solution
The fourth proportional to 1,029,518.92, 1,420,764.44 and 564,398.70 is: 778,885.74
Step by Step Solution
- Step 1: Write the proportion equation
1,029,518.92 : 1,420,764.44 = 564,398.70 : x - Step 2: Convert to fraction form
1,029,518.92/1,420,764.44 = 564,398.70/x - Step 3: Cross multiply
1,029,518.92x = 1,420,764.44 × 564,398.70 - Step 4: Simplify right side
1,029,518.92x = 801,877,602,942.23 - Step 5: Solve for x
x = 801,877,602,942.23/1,029,518.92 - Step 6: Final answer
x = 778,885.74
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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.