Finding the Fourth Proportional to 1,163,647.72, 1,605,828.95 and 647,451.02
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Solution
The fourth proportional to 1,163,647.72, 1,605,828.95 and 647,451.02 is: 893,479.68
Step by Step Solution
- Step 1: Write the proportion equation
1,163,647.72 : 1,605,828.95 = 647,451.02 : x - Step 2: Convert to fraction form
1,163,647.72/1,605,828.95 = 647,451.02/x - Step 3: Cross multiply
1,163,647.72x = 1,605,828.95 × 647,451.02 - Step 4: Simplify right side
1,163,647.72x = 1,039,695,594,828.29 - Step 5: Solve for x
x = 1,039,695,594,828.29/1,163,647.72 - Step 6: Final answer
x = 893,479.68
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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.