Finding the Fourth Proportional to 519,803.91, 717,253.05 and 290,332.92
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Solution
The fourth proportional to 519,803.91, 717,253.05 and 290,332.92 is: 400,616.79
Step by Step Solution
- Step 1: Write the proportion equation
519,803.91 : 717,253.05 = 290,332.92 : x - Step 2: Convert to fraction form
519,803.91/717,253.05 = 290,332.92/x - Step 3: Cross multiply
519,803.91x = 717,253.05 × 290,332.92 - Step 4: Simplify right side
519,803.91x = 208,242,172,385.41 - Step 5: Solve for x
x = 208,242,172,385.41/519,803.91 - Step 6: Final answer
x = 400,616.79
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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.