Finding the Fourth Proportional to 520,206.76, 717,916.26 and 290,775.88
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Solution
The fourth proportional to 520,206.76, 717,916.26 and 290,775.88 is: 401,288.00
Step by Step Solution
- Step 1: Write the proportion equation
520,206.76 : 717,916.26 = 290,775.88 : x - Step 2: Convert to fraction form
520,206.76/717,916.26 = 290,775.88/x - Step 3: Cross multiply
520,206.76x = 717,916.26 × 290,775.88 - Step 4: Simplify right side
520,206.76x = 208,752,732,267.81 - Step 5: Solve for x
x = 208,752,732,267.81/520,206.76 - Step 6: Final answer
x = 401,288.00
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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.