Finding the Fourth Proportional to 531,423.76, 732,949.68 and 340,455.28
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Solution
The fourth proportional to 531,423.76, 732,949.68 and 340,455.28 is: 469,562.35
Step by Step Solution
- Step 1: Write the proportion equation
531,423.76 : 732,949.68 = 340,455.28 : x - Step 2: Convert to fraction form
531,423.76/732,949.68 = 340,455.28/x - Step 3: Cross multiply
531,423.76x = 732,949.68 × 340,455.28 - Step 4: Simplify right side
531,423.76x = 249,536,588,530.31 - Step 5: Solve for x
x = 249,536,588,530.31/531,423.76 - Step 6: Final answer
x = 469,562.35
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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.