Finding the Fourth Proportional to 578,961.81, 868,444.74 and 409,971.02
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Solution
The fourth proportional to 578,961.81, 868,444.74 and 409,971.02 is: 614,957.96
Step by Step Solution
- Step 1: Write the proportion equation
578,961.81 : 868,444.74 = 409,971.02 : x - Step 2: Convert to fraction form
578,961.81/868,444.74 = 409,971.02/x - Step 3: Cross multiply
578,961.81x = 868,444.74 × 409,971.02 - Step 4: Simplify right side
578,961.81x = 356,037,171,529.21 - Step 5: Solve for x
x = 356,037,171,529.21/578,961.81 - Step 6: Final answer
x = 614,957.96
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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.