Finding the Fourth Proportional to 578,678.40, 868,276.80 and 262,972.80
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Solution
The fourth proportional to 578,678.40, 868,276.80 and 262,972.80 is: 394,576.99
Step by Step Solution
- Step 1: Write the proportion equation
578,678.40 : 868,276.80 = 262,972.80 : x - Step 2: Convert to fraction form
578,678.40/868,276.80 = 262,972.80/x - Step 3: Cross multiply
578,678.40x = 868,276.80 × 262,972.80 - Step 4: Simplify right side
578,678.40x = 228,333,181,271.04 - Step 5: Solve for x
x = 228,333,181,271.04/578,678.40 - Step 6: Final answer
x = 394,576.99
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1.5x scale
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.