Finding the Fourth Proportional to 912,119.08, 1,363,129.04 and 672,720.36
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Solution
The fourth proportional to 912,119.08, 1,363,129.04 and 672,720.36 is: 1,005,356.29
Step by Step Solution
- Step 1: Write the proportion equation
912,119.08 : 1,363,129.04 = 672,720.36 : x - Step 2: Convert to fraction form
912,119.08/1,363,129.04 = 672,720.36/x - Step 3: Cross multiply
912,119.08x = 1,363,129.04 × 672,720.36 - Step 4: Simplify right side
912,119.08x = 917,004,658,515.25 - Step 5: Solve for x
x = 917,004,658,515.25/912,119.08 - Step 6: Final answer
x = 1,005,356.29
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.