Finding the Fourth Proportional to 399,615.18, 596,507.70 and 349,169.28
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Solution
The fourth proportional to 399,615.18, 596,507.70 and 349,169.28 is: 521,206.84
Step by Step Solution
- Step 1: Write the proportion equation
399,615.18 : 596,507.70 = 349,169.28 : x - Step 2: Convert to fraction form
399,615.18/596,507.70 = 349,169.28/x - Step 3: Cross multiply
399,615.18x = 596,507.70 × 349,169.28 - Step 4: Simplify right side
399,615.18x = 208,282,164,123.46 - Step 5: Solve for x
x = 208,282,164,123.46/399,615.18 - Step 6: Final answer
x = 521,206.84
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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.