Finding the Fourth Proportional to 578,328.84, 867,674.74 and 347,783.17
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Solution
The fourth proportional to 578,328.84, 867,674.74 and 347,783.17 is: 521,783.89
Step by Step Solution
- Step 1: Write the proportion equation
578,328.84 : 867,674.74 = 347,783.17 : x - Step 2: Convert to fraction form
578,328.84/867,674.74 = 347,783.17/x - Step 3: Cross multiply
578,328.84x = 867,674.74 × 347,783.17 - Step 4: Simplify right side
578,328.84x = 301,762,671,606.13 - Step 5: Solve for x
x = 301,762,671,606.13/578,328.84 - Step 6: Final answer
x = 521,783.89
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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.