Finding the Fourth Proportional to 1,018,813.80, 1,528,220.70 and 546,421.80
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Solution
The fourth proportional to 1,018,813.80, 1,528,220.70 and 546,421.80 is: 819,632.70
Step by Step Solution
- Step 1: Write the proportion equation
1,018,813.80 : 1,528,220.70 = 546,421.80 : x - Step 2: Convert to fraction form
1,018,813.80/1,528,220.70 = 546,421.80/x - Step 3: Cross multiply
1,018,813.80x = 1,528,220.70 × 546,421.80 - Step 4: Simplify right side
1,018,813.80x = 835,053,105,691.26 - Step 5: Solve for x
x = 835,053,105,691.26/1,018,813.80 - Step 6: Final answer
x = 819,632.70
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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.