Finding the Fourth Proportional to 432,875.80, 649,313.70 and 354,143.80
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Solution
The fourth proportional to 432,875.80, 649,313.70 and 354,143.80 is: 531,215.70
Step by Step Solution
- Step 1: Write the proportion equation
432,875.80 : 649,313.70 = 354,143.80 : x - Step 2: Convert to fraction form
432,875.80/649,313.70 = 354,143.80/x - Step 3: Cross multiply
432,875.80x = 649,313.70 × 354,143.80 - Step 4: Simplify right side
432,875.80x = 229,950,421,110.06 - Step 5: Solve for x
x = 229,950,421,110.06/432,875.80 - Step 6: Final answer
x = 531,215.70
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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.