Finding the Fourth Proportional to 897,895.47, 1,239,102.99 and 490,000.53
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Solution
The fourth proportional to 897,895.47, 1,239,102.99 and 490,000.53 is: 676,204.68
Step by Step Solution
- Step 1: Write the proportion equation
897,895.47 : 1,239,102.99 = 490,000.53 : x - Step 2: Convert to fraction form
897,895.47/1,239,102.99 = 490,000.53/x - Step 3: Cross multiply
897,895.47x = 1,239,102.99 × 490,000.53 - Step 4: Simplify right side
897,895.47x = 607,161,121,824.59 - Step 5: Solve for x
x = 607,161,121,824.59/897,895.47 - Step 6: Final answer
x = 676,204.68
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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.