Finding the Fourth Proportional to 915,901.95, 1,372,118.84 and 611,377.88
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Solution
The fourth proportional to 915,901.95, 1,372,118.84 and 611,377.88 is: 915,909.29
Step by Step Solution
- Step 1: Write the proportion equation
915,901.95 : 1,372,118.84 = 611,377.88 : x - Step 2: Convert to fraction form
915,901.95/1,372,118.84 = 611,377.88/x - Step 3: Cross multiply
915,901.95x = 1,372,118.84 × 611,377.88 - Step 4: Simplify right side
915,901.95x = 838,883,107,507.26 - Step 5: Solve for x
x = 838,883,107,507.26/915,901.95 - Step 6: Final answer
x = 915,909.29
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.