Finding the Fourth Proportional to 1,427,572.11, 1,970,214.12 and 854,612.13
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Solution
The fourth proportional to 1,427,572.11, 1,970,214.12 and 854,612.13 is: 1,179,463.28
Step by Step Solution
- Step 1: Write the proportion equation
1,427,572.11 : 1,970,214.12 = 854,612.13 : x - Step 2: Convert to fraction form
1,427,572.11/1,970,214.12 = 854,612.13/x - Step 3: Cross multiply
1,427,572.11x = 1,970,214.12 × 854,612.13 - Step 4: Simplify right side
1,427,572.11x = 1,683,768,885,649.28 - Step 5: Solve for x
x = 1,683,768,885,649.28/1,427,572.11 - Step 6: Final answer
x = 1,179,463.28
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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.