Finding the Fourth Proportional to 513,521.30, 708,420.60 and 332,291.79
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Solution
The fourth proportional to 513,521.30, 708,420.60 and 332,291.79 is: 458,408.15
Step by Step Solution
- Step 1: Write the proportion equation
513,521.30 : 708,420.60 = 332,291.79 : x - Step 2: Convert to fraction form
513,521.30/708,420.60 = 332,291.79/x - Step 3: Cross multiply
513,521.30x = 708,420.60 × 332,291.79 - Step 4: Simplify right side
513,521.30x = 235,402,349,246.87 - Step 5: Solve for x
x = 235,402,349,246.87/513,521.30 - Step 6: Final answer
x = 458,408.15
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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.