Finding the Fourth Proportional to 1,219,913.76, 1,683,455.84 and 676,045.28
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Solution
The fourth proportional to 1,219,913.76, 1,683,455.84 and 676,045.28 is: 932,928.55
Step by Step Solution
- Step 1: Write the proportion equation
1,219,913.76 : 1,683,455.84 = 676,045.28 : x - Step 2: Convert to fraction form
1,219,913.76/1,683,455.84 = 676,045.28/x - Step 3: Cross multiply
1,219,913.76x = 1,683,455.84 × 676,045.28 - Step 4: Simplify right side
1,219,913.76x = 1,138,092,374,720.44 - Step 5: Solve for x
x = 1,138,092,374,720.44/1,219,913.76 - Step 6: Final answer
x = 932,928.55
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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.