Finding the Fourth Proportional to 1,427,708.55, 1,970,202.29 and 815,822.49
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Solution
The fourth proportional to 1,427,708.55, 1,970,202.29 and 815,822.49 is: 1,125,814.74
Step by Step Solution
- Step 1: Write the proportion equation
1,427,708.55 : 1,970,202.29 = 815,822.49 : x - Step 2: Convert to fraction form
1,427,708.55/1,970,202.29 = 815,822.49/x - Step 3: Cross multiply
1,427,708.55x = 1,970,202.29 × 815,822.49 - Step 4: Simplify right side
1,427,708.55x = 1,607,335,333,952.39 - Step 5: Solve for x
x = 1,607,335,333,952.39/1,427,708.55 - Step 6: Final answer
x = 1,125,814.74
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.