Finding the Fourth Proportional to 1,557,028.16, 2,148,905.04 and 912,701.60
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Solution
The fourth proportional to 1,557,028.16, 2,148,905.04 and 912,701.60 is: 1,259,649.07
Step by Step Solution
- Step 1: Write the proportion equation
1,557,028.16 : 2,148,905.04 = 912,701.60 : x - Step 2: Convert to fraction form
1,557,028.16/2,148,905.04 = 912,701.60/x - Step 3: Cross multiply
1,557,028.16x = 2,148,905.04 × 912,701.60 - Step 4: Simplify right side
1,557,028.16x = 1,961,309,068,256.06 - Step 5: Solve for x
x = 1,961,309,068,256.06/1,557,028.16 - Step 6: Final answer
x = 1,259,649.07
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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.