Finding the Fourth Proportional to 1,557,030.16, 2,148,907.80 and 912,703.60
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Solution
The fourth proportional to 1,557,030.16, 2,148,907.80 and 912,703.60 is: 1,259,651.83
Step by Step Solution
- Step 1: Write the proportion equation
1,557,030.16 : 2,148,907.80 = 912,703.60 : x - Step 2: Convert to fraction form
1,557,030.16/2,148,907.80 = 912,703.60/x - Step 3: Cross multiply
1,557,030.16x = 2,148,907.80 × 912,703.60 - Step 4: Simplify right side
1,557,030.16x = 1,961,315,885,128.08 - Step 5: Solve for x
x = 1,961,315,885,128.08/1,557,030.16 - Step 6: Final answer
x = 1,259,651.83
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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.