Finding the Fourth Proportional to 724,944.53, 1,000,423.51 and 402,684.62
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Solution
The fourth proportional to 724,944.53, 1,000,423.51 and 402,684.62 is: 555,704.80
Step by Step Solution
- Step 1: Write the proportion equation
724,944.53 : 1,000,423.51 = 402,684.62 : x - Step 2: Convert to fraction form
724,944.53/1,000,423.51 = 402,684.62/x - Step 3: Cross multiply
724,944.53x = 1,000,423.51 × 402,684.62 - Step 4: Simplify right side
724,944.53x = 402,855,154,954.59 - Step 5: Solve for x
x = 402,855,154,954.59/724,944.53 - Step 6: Final answer
x = 555,704.80
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1.5x scale
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.