Finding the Fourth Proportional to 749,355.39, 1,124,402.12 and 349,938.12
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Solution
The fourth proportional to 749,355.39, 1,124,402.12 and 349,938.12 is: 525,079.51
Step by Step Solution
- Step 1: Write the proportion equation
749,355.39 : 1,124,402.12 = 349,938.12 : x - Step 2: Convert to fraction form
749,355.39/1,124,402.12 = 349,938.12/x - Step 3: Cross multiply
749,355.39x = 1,124,402.12 × 349,938.12 - Step 4: Simplify right side
749,355.39x = 393,471,163,996.81 - Step 5: Solve for x
x = 393,471,163,996.81/749,355.39 - Step 6: Final answer
x = 525,079.51
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.