Finding the Fourth Proportional to 1,974,416.40, 2,961,624.68 and 478,508.40
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Solution
The fourth proportional to 1,974,416.40, 2,961,624.68 and 478,508.40 is: 717,762.62
Step by Step Solution
- Step 1: Write the proportion equation
1,974,416.40 : 2,961,624.68 = 478,508.40 : x - Step 2: Convert to fraction form
1,974,416.40/2,961,624.68 = 478,508.40/x - Step 3: Cross multiply
1,974,416.40x = 2,961,624.68 × 478,508.40 - Step 4: Simplify right side
1,974,416.40x = 1,417,162,287,027.31 - Step 5: Solve for x
x = 1,417,162,287,027.31/1,974,416.40 - Step 6: Final answer
x = 717,762.62
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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.