Finding the Fourth Proportional to 649,621.40, 974,432.10 and 471,291.80
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Solution
The fourth proportional to 649,621.40, 974,432.10 and 471,291.80 is: 706,937.70
Step by Step Solution
- Step 1: Write the proportion equation
649,621.40 : 974,432.10 = 471,291.80 : x - Step 2: Convert to fraction form
649,621.40/974,432.10 = 471,291.80/x - Step 3: Cross multiply
649,621.40x = 974,432.10 × 471,291.80 - Step 4: Simplify right side
649,621.40x = 459,241,858,386.78 - Step 5: Solve for x
x = 459,241,858,386.78/649,621.40 - Step 6: Final answer
x = 706,937.70
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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.