Finding the Fourth Proportional to 520,031.10, 778,491.45 and 489,272.70
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Solution
The fourth proportional to 520,031.10, 778,491.45 and 489,272.70 is: 732,445.84
Step by Step Solution
- Step 1: Write the proportion equation
520,031.10 : 778,491.45 = 489,272.70 : x - Step 2: Convert to fraction form
520,031.10/778,491.45 = 489,272.70/x - Step 3: Cross multiply
520,031.10x = 778,491.45 × 489,272.70 - Step 4: Simplify right side
520,031.10x = 380,894,613,668.42 - Step 5: Solve for x
x = 380,894,613,668.42/520,031.10 - Step 6: Final answer
x = 732,445.84
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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.