Finding the Fourth Proportional to 406,420.29, 609,658.38 and 122,098.95
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Solution
The fourth proportional to 406,420.29, 609,658.38 and 122,098.95 is: 183,156.82
Step by Step Solution
- Step 1: Write the proportion equation
406,420.29 : 609,658.38 = 122,098.95 : x - Step 2: Convert to fraction form
406,420.29/609,658.38 = 122,098.95/x - Step 3: Cross multiply
406,420.29x = 609,658.38 × 122,098.95 - Step 4: Simplify right side
406,420.29x = 74,438,648,056.70 - Step 5: Solve for x
x = 74,438,648,056.70/406,420.29 - Step 6: Final answer
x = 183,156.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.