Finding the Fourth Proportional to 1,564,539.71, 2,158,694.75 and 885,476.21
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Solution
The fourth proportional to 1,564,539.71, 2,158,694.75 and 885,476.21 is: 1,221,747.73
Step by Step Solution
- Step 1: Write the proportion equation
1,564,539.71 : 2,158,694.75 = 885,476.21 : x - Step 2: Convert to fraction form
1,564,539.71/2,158,694.75 = 885,476.21/x - Step 3: Cross multiply
1,564,539.71x = 2,158,694.75 × 885,476.21 - Step 4: Simplify right side
1,564,539.71x = 1,911,472,837,197.11 - Step 5: Solve for x
x = 1,911,472,837,197.11/1,564,539.71 - Step 6: Final answer
x = 1,221,747.73
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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.