Finding the Fourth Proportional to 815,644.80, 1,125,335.86 and 471,355.28
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Solution
The fourth proportional to 815,644.80, 1,125,335.86 and 471,355.28 is: 650,323.52
Step by Step Solution
- Step 1: Write the proportion equation
815,644.80 : 1,125,335.86 = 471,355.28 : x - Step 2: Convert to fraction form
815,644.80/1,125,335.86 = 471,355.28/x - Step 3: Cross multiply
815,644.80x = 1,125,335.86 × 471,355.28 - Step 4: Simplify right side
815,644.80x = 530,432,999,384.34 - Step 5: Solve for x
x = 530,432,999,384.34/815,644.80 - Step 6: Final answer
x = 650,323.52
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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.