Finding the Fourth Proportional to 832,943.24, 1,248,106.62 and 643,866.92
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Solution
The fourth proportional to 832,943.24, 1,248,106.62 and 643,866.92 is: 964,789.11
Step by Step Solution
- Step 1: Write the proportion equation
832,943.24 : 1,248,106.62 = 643,866.92 : x - Step 2: Convert to fraction form
832,943.24/1,248,106.62 = 643,866.92/x - Step 3: Cross multiply
832,943.24x = 1,248,106.62 × 643,866.92 - Step 4: Simplify right side
832,943.24x = 803,614,565,251.01 - Step 5: Solve for x
x = 803,614,565,251.01/832,943.24 - Step 6: Final answer
x = 964,789.11
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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.