Finding the Fourth Proportional to 819,440.27, 1,130,425.63 and 547,574.91
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Solution
The fourth proportional to 819,440.27, 1,130,425.63 and 547,574.91 is: 755,384.79
Step by Step Solution
- Step 1: Write the proportion equation
819,440.27 : 1,130,425.63 = 547,574.91 : x - Step 2: Convert to fraction form
819,440.27/1,130,425.63 = 547,574.91/x - Step 3: Cross multiply
819,440.27x = 1,130,425.63 × 547,574.91 - Step 4: Simplify right side
819,440.27x = 618,992,712,608.94 - Step 5: Solve for x
x = 618,992,712,608.94/819,440.27 - Step 6: Final answer
x = 755,384.79
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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.