Finding the Fourth Proportional to 768,929.42, 1,153,389.95 and 313,518.88
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Solution
The fourth proportional to 768,929.42, 1,153,389.95 and 313,518.88 is: 470,276.62
Step by Step Solution
- Step 1: Write the proportion equation
768,929.42 : 1,153,389.95 = 313,518.88 : x - Step 2: Convert to fraction form
768,929.42/1,153,389.95 = 313,518.88/x - Step 3: Cross multiply
768,929.42x = 1,153,389.95 × 313,518.88 - Step 4: Simplify right side
768,929.42x = 361,609,525,327.26 - Step 5: Solve for x
x = 361,609,525,327.26/768,929.42 - Step 6: Final answer
x = 470,276.62
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.