Finding the Fourth Proportional to 390,614.19, 539,062.93 and 229,467.82
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Solution
The fourth proportional to 390,614.19, 539,062.93 and 229,467.82 is: 316,674.61
Step by Step Solution
- Step 1: Write the proportion equation
390,614.19 : 539,062.93 = 229,467.82 : x - Step 2: Convert to fraction form
390,614.19/539,062.93 = 229,467.82/x - Step 3: Cross multiply
390,614.19x = 539,062.93 × 229,467.82 - Step 4: Simplify right side
390,614.19x = 123,697,595,389.91 - Step 5: Solve for x
x = 123,697,595,389.91/390,614.19 - Step 6: Final answer
x = 316,674.61
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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.