Finding the Fourth Proportional to 553,050.99, 763,215.62 and 311,286.65
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Solution
The fourth proportional to 553,050.99, 763,215.62 and 311,286.65 is: 429,578.52
Step by Step Solution
- Step 1: Write the proportion equation
553,050.99 : 763,215.62 = 311,286.65 : x - Step 2: Convert to fraction form
553,050.99/763,215.62 = 311,286.65/x - Step 3: Cross multiply
553,050.99x = 763,215.62 × 311,286.65 - Step 4: Simplify right side
553,050.99x = 237,578,828,204.96 - Step 5: Solve for x
x = 237,578,828,204.96/553,050.99 - Step 6: Final answer
x = 429,578.52
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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.