Finding the Fourth Proportional to 690,552.99, 953,010.99 and 418,632.35
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Solution
The fourth proportional to 690,552.99, 953,010.99 and 418,632.35 is: 577,741.65
Step by Step Solution
- Step 1: Write the proportion equation
690,552.99 : 953,010.99 = 418,632.35 : x - Step 2: Convert to fraction form
690,552.99/953,010.99 = 418,632.35/x - Step 3: Cross multiply
690,552.99x = 953,010.99 × 418,632.35 - Step 4: Simplify right side
690,552.99x = 398,961,225,554.47 - Step 5: Solve for x
x = 398,961,225,554.47/690,552.99 - Step 6: Final answer
x = 577,741.65
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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.