Finding the Fourth Proportional to 553,315.70, 829,973.55 and 343,363.70
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Solution
The fourth proportional to 553,315.70, 829,973.55 and 343,363.70 is: 515,045.55
Step by Step Solution
- Step 1: Write the proportion equation
553,315.70 : 829,973.55 = 343,363.70 : x - Step 2: Convert to fraction form
553,315.70/829,973.55 = 343,363.70/x - Step 3: Cross multiply
553,315.70x = 829,973.55 × 343,363.70 - Step 4: Simplify right side
553,315.70x = 284,982,789,030.14 - Step 5: Solve for x
x = 284,982,789,030.14/553,315.70 - Step 6: Final answer
x = 515,045.55
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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.