Finding the Fourth Proportional to 1,126,288.19, 1,554,389.18 and 642,926.02
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Solution
The fourth proportional to 1,126,288.19, 1,554,389.18 and 642,926.02 is: 887,301.54
Step by Step Solution
- Step 1: Write the proportion equation
1,126,288.19 : 1,554,389.18 = 642,926.02 : x - Step 2: Convert to fraction form
1,126,288.19/1,554,389.18 = 642,926.02/x - Step 3: Cross multiply
1,126,288.19x = 1,554,389.18 × 642,926.02 - Step 4: Simplify right side
1,126,288.19x = 999,357,249,028.46 - Step 5: Solve for x
x = 999,357,249,028.46/1,126,288.19 - Step 6: Final answer
x = 887,301.54
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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.