Finding the Fourth Proportional to 899,139.24, 1,240,897.92 and 491,303.08
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Solution
The fourth proportional to 899,139.24, 1,240,897.92 and 491,303.08 is: 678,045.12
Step by Step Solution
- Step 1: Write the proportion equation
899,139.24 : 1,240,897.92 = 491,303.08 : x - Step 2: Convert to fraction form
899,139.24/1,240,897.92 = 491,303.08/x - Step 3: Cross multiply
899,139.24x = 1,240,897.92 × 491,303.08 - Step 4: Simplify right side
899,139.24x = 609,656,970,061.59 - Step 5: Solve for x
x = 609,656,970,061.59/899,139.24 - Step 6: Final answer
x = 678,045.12
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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.