Finding the Fourth Proportional to 1,398,432.84, 1,929,985.48 and 854,886.84
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Solution
The fourth proportional to 1,398,432.84, 1,929,985.48 and 854,886.84 is: 1,179,834.41
Step by Step Solution
- Step 1: Write the proportion equation
1,398,432.84 : 1,929,985.48 = 854,886.84 : x - Step 2: Convert to fraction form
1,398,432.84/1,929,985.48 = 854,886.84/x - Step 3: Cross multiply
1,398,432.84x = 1,929,985.48 × 854,886.84 - Step 4: Simplify right side
1,398,432.84x = 1,649,919,188,243.08 - Step 5: Solve for x
x = 1,649,919,188,243.08/1,398,432.84 - Step 6: Final answer
x = 1,179,834.41
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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.