Finding the Fourth Proportional to 814,641.84, 1,124,241.12 and 542,271.36
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Solution
The fourth proportional to 814,641.84, 1,124,241.12 and 542,271.36 is: 748,358.03
Step by Step Solution
- Step 1: Write the proportion equation
814,641.84 : 1,124,241.12 = 542,271.36 : x - Step 2: Convert to fraction form
814,641.84/1,124,241.12 = 542,271.36/x - Step 3: Cross multiply
814,641.84x = 1,124,241.12 × 542,271.36 - Step 4: Simplify right side
814,641.84x = 609,643,761,110.32 - Step 5: Solve for x
x = 609,643,761,110.32/814,641.84 - Step 6: Final answer
x = 748,358.03
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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.