Finding the Fourth Proportional to 1,272,389.13, 1,909,206.30 and 598,538.43
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Solution
The fourth proportional to 1,272,389.13, 1,909,206.30 and 598,538.43 is: 898,100.52
Step by Step Solution
- Step 1: Write the proportion equation
1,272,389.13 : 1,909,206.30 = 598,538.43 : x - Step 2: Convert to fraction form
1,272,389.13/1,909,206.30 = 598,538.43/x - Step 3: Cross multiply
1,272,389.13x = 1,909,206.30 × 598,538.43 - Step 4: Simplify right side
1,272,389.13x = 1,142,733,341,348.11 - Step 5: Solve for x
x = 1,142,733,341,348.11/1,272,389.13 - Step 6: Final answer
x = 898,100.52
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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.