Finding the Fourth Proportional to 943,985.20, 1,302,693.12 and 514,265.68
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Solution
The fourth proportional to 943,985.20, 1,302,693.12 and 514,265.68 is: 709,683.12
Step by Step Solution
- Step 1: Write the proportion equation
943,985.20 : 1,302,693.12 = 514,265.68 : x - Step 2: Convert to fraction form
943,985.20/1,302,693.12 = 514,265.68/x - Step 3: Cross multiply
943,985.20x = 1,302,693.12 × 514,265.68 - Step 4: Simplify right side
943,985.20x = 669,930,363,188.12 - Step 5: Solve for x
x = 669,930,363,188.12/943,985.20 - Step 6: Final answer
x = 709,683.12
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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.