Finding the Fourth Proportional to 578,666.08, 868,560.12 and 279,357.28
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Solution
The fourth proportional to 578,666.08, 868,560.12 and 279,357.28 is: 419,306.75
Step by Step Solution
- Step 1: Write the proportion equation
578,666.08 : 868,560.12 = 279,357.28 : x - Step 2: Convert to fraction form
578,666.08/868,560.12 = 279,357.28/x - Step 3: Cross multiply
578,666.08x = 868,560.12 × 279,357.28 - Step 4: Simplify right side
578,666.08x = 242,638,592,639.67 - Step 5: Solve for x
x = 242,638,592,639.67/578,666.08 - Step 6: Final answer
x = 419,306.75
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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.