Finding the Fourth Proportional to 716,070.84, 988,183.98 and 389,384.88
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Solution
The fourth proportional to 716,070.84, 988,183.98 and 389,384.88 is: 537,354.52
Step by Step Solution
- Step 1: Write the proportion equation
716,070.84 : 988,183.98 = 389,384.88 : x - Step 2: Convert to fraction form
716,070.84/988,183.98 = 389,384.88/x - Step 3: Cross multiply
716,070.84x = 988,183.98 × 389,384.88 - Step 4: Simplify right side
716,070.84x = 384,783,900,470.22 - Step 5: Solve for x
x = 384,783,900,470.22/716,070.84 - Step 6: Final answer
x = 537,354.52
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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.