Finding the Fourth Proportional to 1,031,335.74, 1,423,221.30 and 572,423.58
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Solution
The fourth proportional to 1,031,335.74, 1,423,221.30 and 572,423.58 is: 789,932.32
Step by Step Solution
- Step 1: Write the proportion equation
1,031,335.74 : 1,423,221.30 = 572,423.58 : x - Step 2: Convert to fraction form
1,031,335.74/1,423,221.30 = 572,423.58/x - Step 3: Cross multiply
1,031,335.74x = 1,423,221.30 × 572,423.58 - Step 4: Simplify right side
1,031,335.74x = 814,685,431,678.25 - Step 5: Solve for x
x = 814,685,431,678.25/1,031,335.74 - Step 6: Final answer
x = 789,932.32
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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.