Finding the Fourth Proportional to 644,129.36, 961,856.50 and 526,034.96
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Solution
The fourth proportional to 644,129.36, 961,856.50 and 526,034.96 is: 785,510.14
Step by Step Solution
- Step 1: Write the proportion equation
644,129.36 : 961,856.50 = 526,034.96 : x - Step 2: Convert to fraction form
644,129.36/961,856.50 = 526,034.96/x - Step 3: Cross multiply
644,129.36x = 961,856.50 × 526,034.96 - Step 4: Simplify right side
644,129.36x = 505,970,145,503.24 - Step 5: Solve for x
x = 505,970,145,503.24/644,129.36 - Step 6: Final answer
x = 785,510.14
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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.