Finding the Fourth Proportional to 724,813.92, 1,000,209.84 and 402,544.48
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Solution
The fourth proportional to 724,813.92, 1,000,209.84 and 402,544.48 is: 555,492.85
Step by Step Solution
- Step 1: Write the proportion equation
724,813.92 : 1,000,209.84 = 402,544.48 : x - Step 2: Convert to fraction form
724,813.92/1,000,209.84 = 402,544.48/x - Step 3: Cross multiply
724,813.92x = 1,000,209.84 × 402,544.48 - Step 4: Simplify right side
724,813.92x = 402,628,949,933.68 - Step 5: Solve for x
x = 402,628,949,933.68/724,813.92 - Step 6: Final answer
x = 555,492.85
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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.