Finding the Fourth Proportional to 814,798.13, 1,124,421.42 and 457,102.13
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Solution
The fourth proportional to 814,798.13, 1,124,421.42 and 457,102.13 is: 630,800.94
Step by Step Solution
- Step 1: Write the proportion equation
814,798.13 : 1,124,421.42 = 457,102.13 : x - Step 2: Convert to fraction form
814,798.13/1,124,421.42 = 457,102.13/x - Step 3: Cross multiply
814,798.13x = 1,124,421.42 × 457,102.13 - Step 4: Simplify right side
814,798.13x = 513,975,420,477.52 - Step 5: Solve for x
x = 513,975,420,477.52/814,798.13 - Step 6: Final answer
x = 630,800.94
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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.