Finding the Fourth Proportional to 1,557,744, 2,149,686.84 and 842,352
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Solution
The fourth proportional to 1,557,744, 2,149,686.84 and 842,352 is: 1,162,445.82
Step by Step Solution
- Step 1: Write the proportion equation
1,557,744 : 2,149,686.84 = 842,352 : x - Step 2: Convert to fraction form
1,557,744/2,149,686.84 = 842,352/x - Step 3: Cross multiply
1,557,744x = 2,149,686.84 × 842,352 - Step 4: Simplify right side
1,557,744x = 1,810,793,009,047.68 - Step 5: Solve for x
x = 1,810,793,009,047.68/1,557,744 - Step 6: Final answer
x = 1,162,445.82
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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.