Finding the Fourth Proportional to 649,619.40, 974,429.10 and 471,289.80
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Solution
The fourth proportional to 649,619.40, 974,429.10 and 471,289.80 is: 706,934.70
Step by Step Solution
- Step 1: Write the proportion equation
649,619.40 : 974,429.10 = 471,289.80 : x - Step 2: Convert to fraction form
649,619.40/974,429.10 = 471,289.80/x - Step 3: Cross multiply
649,619.40x = 974,429.10 × 471,289.80 - Step 4: Simplify right side
649,619.40x = 459,238,495,653.18 - Step 5: Solve for x
x = 459,238,495,653.18/649,619.40 - Step 6: Final answer
x = 706,934.70
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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.