Finding the Fourth Proportional to 669,128.84, 1,003,694.70 and 470,338.76
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Solution
The fourth proportional to 669,128.84, 1,003,694.70 and 470,338.76 is: 705,509.15
Step by Step Solution
- Step 1: Write the proportion equation
669,128.84 : 1,003,694.70 = 470,338.76 : x - Step 2: Convert to fraction form
669,128.84/1,003,694.70 = 470,338.76/x - Step 3: Cross multiply
669,128.84x = 1,003,694.70 × 470,338.76 - Step 4: Simplify right side
669,128.84x = 472,076,520,616.57 - Step 5: Solve for x
x = 472,076,520,616.57/669,128.84 - Step 6: Final answer
x = 705,509.15
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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.