Finding the Fourth Proportional to 514,465.74, 709,905.28 and 284,966.09
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Solution
The fourth proportional to 514,465.74, 709,905.28 and 284,966.09 is: 393,221.38
Step by Step Solution
- Step 1: Write the proportion equation
514,465.74 : 709,905.28 = 284,966.09 : x - Step 2: Convert to fraction form
514,465.74/709,905.28 = 284,966.09/x - Step 3: Cross multiply
514,465.74x = 709,905.28 × 284,966.09 - Step 4: Simplify right side
514,465.74x = 202,298,928,645.97 - Step 5: Solve for x
x = 202,298,928,645.97/514,465.74 - Step 6: Final answer
x = 393,221.38
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1.5x scale
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.