Finding the Fourth Proportional to 673,291.46, 929,187.74 and 386,925.70
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Solution
The fourth proportional to 673,291.46, 929,187.74 and 386,925.70 is: 533,983.62
Step by Step Solution
- Step 1: Write the proportion equation
673,291.46 : 929,187.74 = 386,925.70 : x - Step 2: Convert to fraction form
673,291.46/929,187.74 = 386,925.70/x - Step 3: Cross multiply
673,291.46x = 929,187.74 × 386,925.70 - Step 4: Simplify right side
673,291.46x = 359,526,611,117.67 - Step 5: Solve for x
x = 359,526,611,117.67/673,291.46 - Step 6: Final answer
x = 533,983.62
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.