Finding the Fourth Proportional to 1,239,726.28, 1,858,866.89 and 480,680.99
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Solution
The fourth proportional to 1,239,726.28, 1,858,866.89 and 480,680.99 is: 720,741.34
Step by Step Solution
- Step 1: Write the proportion equation
1,239,726.28 : 1,858,866.89 = 480,680.99 : x - Step 2: Convert to fraction form
1,239,726.28/1,858,866.89 = 480,680.99/x - Step 3: Cross multiply
1,239,726.28x = 1,858,866.89 × 480,680.99 - Step 4: Simplify right side
1,239,726.28x = 893,521,979,207.18 - Step 5: Solve for x
x = 893,521,979,207.18/1,239,726.28 - Step 6: Final answer
x = 720,741.34
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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.