Finding the Fourth Proportional to 3,128,671.50, 4,317,566.68 and 1,697,887.50
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Solution
The fourth proportional to 3,128,671.50, 4,317,566.68 and 1,697,887.50 is: 2,343,084.76
Step by Step Solution
- Step 1: Write the proportion equation
3,128,671.50 : 4,317,566.68 = 1,697,887.50 : x - Step 2: Convert to fraction form
3,128,671.50/4,317,566.68 = 1,697,887.50/x - Step 3: Cross multiply
3,128,671.50x = 4,317,566.68 × 1,697,887.50 - Step 4: Simplify right side
3,128,671.50x = 7,330,742,496,388.50 - Step 5: Solve for x
x = 7,330,742,496,388.50/3,128,671.50 - Step 6: Final answer
x = 2,343,084.76
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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.